🛢️ bedst motorolier 2026

Find the best motor oils with expert comparisons

Sidst opdateret: 17. december 2025 👁️ 1 Viser nu

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Rachel Foster
Anmeldt af Rachel Foster Medvirkende redaktør
# Product Price Rating Reviews Action
1
$27.97
★★★★★
4.8 / 5
50,187 View Deal
2
$19.97
★★★★★
4.8 / 5
35,828 View Deal
3
$26.97
★★★★★
4.8 / 5
34,371 View Deal
4
$27.97
★★★★★
4.8 / 5
50,187 View Deal
5
$23.96
★★★★★
4.8 / 5
2,972 View Deal
6
$20.40
★★★★★
4.8 / 5
7,942 View Deal
7
$6.48
★★★★★
4.8 / 5
3,390 View Deal
8
$19.97
★★★★★
4.8 / 5
35,828 View Deal
9
$26.97
★★★★★
4.8 / 5
35,828 View Deal
10
$23.96
★★★★★
4.8 / 5
3,032 View Deal
11
$27.48
★★★★★
4.8 / 5
12,434 View Deal
12
$20.97
★★★★★
4.8 / 5
3,700 View Deal
13
$27.97
★★★★★
4.9 / 5
4,649 View Deal
14
$26.98
★★★★★
4.7 / 5
770 View Deal
15
$27.48
★★★★★
4.8 / 5
8,922 View Deal
16
$33.80
★★★★★
4.8 / 5
10,095 View Deal
17
$27.97
★★★★★
4.8 / 5
50,187 View Deal
18
$20.97
★★★★★
4.8 / 5
2,721 View Deal
19
$29.98
★★★★★
4.8 / 5
2,483 View Deal
20
$20.97
★★★★★
4.8 / 5
4,200 View Deal

Detailed Reviews

#1

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20 5 Quart

by Mobil
$27.97 $29.97
★★★★★ (4.8)
50,187 anmeldelser

Vores bud

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20 er specielt formuleret til at forbedre motorens ydeevne og beskyttelse til køretøjer med over 75.000 miles. Denne 5-kvarts flaske tilbyder overlegen slidbeskyttelse, forbedret brændstoføkonomi og hjælper med at reducere olieforbruget, hvilket gør den til et ideelt valg til at opretholde motorer med højt kilometertal. Med en 4,8-stjernet vurdering fra over 50.000 anmeldelser står den som en pålidelig mulighed for at forlænge motorens levetid og sikre optimal ydeevne.

fordele
  • 4.8★ rating from 50,187 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Always buy this for my car. Works well."

— Amazon Customer
Tjek prisen på Amazon →
#2

Valvoline High Mileage MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 ...

by Valvoline
$19.97
★★★★★ (4.8)
35,828 anmeldelser

Vores bud

Valvoline High Mileage MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil er specielt designet til ældre motorer, der tilbyder forbedret beskyttelse mod olielækager og forbrug. Med sin avancerede formulering hjælper den med at forlænge motorens levetid og forbedre ydeevnen, hvilket gør den til et ideelt valg for køretøjer med højere kilometertal. Prisen til $19,97 kan denne motorolie prale af en stærk 4,8-stjernet vurdering fra over 35.000 anmeldelser, hvilket sikrer pålidelig kvalitet og værdi for dit køretøjs vedligeholdelsesbehov.

fordele
  • 4.8★ rating from 35,828 verified buyers
cons
  • Some note: issue isn't happening (yet) and her gas mpg has
  • Not Prime eligible - shipping times may vary
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"When my wife's 2016 Hyundai reached 100k miles, I noticed the engine was slightly noisier and was consuming a bit of oil between changes. It became apparent that the time to switch to a synthetic blend WAS NOW. I ended up going with this high mileage blend and I'm so glad that I did!My wife and I bo..."

— Amazon Customer
Tjek prisen på Amazon →
#3

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 Quart

by Valvoline
$26.97 $35.99
★★★★★ (4.8)
34,371 anmeldelser

Vores bud

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil giver overlegen motorbeskyttelse med 25 % bedre aflejringskontrol og 40 % forbedret slidstyrke sammenlignet med industristandarder. Denne 5-kvarts formulering er ideel til højtydende køretøjer, hvilket sikrer optimal motorens renhed og lang levetid. Med en 4,8-stjernet vurdering fra over 34.000 anmeldelser, skiller det sig ud som et pålideligt valg til at opretholde motorens effektivitet og ydeevne.

fordele
  • Customers say: "perfect for my car and helps with fuel efficiency"
  • 4.8★ rating from 34,371 verified buyers
  • Currently $9 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Great oil for my engine!Valvoline is my go-to motor oil — it keeps my engine running smoothly and clean. I’ve used it for several oil changes, and it always delivers excellent protection and performance. The 0W-20 is perfect for my car and helps with fuel efficiency. The price is great compared to o..."

— Amazon Customer
Tjek prisen på Amazon →
#4

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, 5 Quart

by Mobil
$27.97 $29.97
★★★★★ (4.8)
50,187 anmeldelser

Vores bud

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16 er designet til avancerede motorer og hybridmotorer, hvilket øger brændstofeffektiviteten og forlænger motorens levetid. Denne 5-kvarts formulering tilbyder overlegen beskyttelse og ydeevne, understøttet af en 4,8-stjernet vurdering fra over 50.000 anmeldelser. Med sin avancerede syntetiske teknologi sikrer denne motorolie optimal motorydelse, samtidig med at den leverer enestående værdi for din investering.

fordele
  • 4.8★ rating from 50,187 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Always buy this for my car. Works well."

— Amazon Customer
Tjek prisen på Amazon →
#5

Castrol GTX fuld syntetisk 5W-30 motorolie 5 quarts

by Castrol
$23.96 $25.24
★★★★★ (4.8)
2,972 anmeldelser

Vores bud

Castrol GTX Full Synthetic 5W-30 Motor Oil er designet til at levere enestående motorbeskyttelse og ydeevne, selv under ekstreme køreforhold. Med sin avancerede formel hjælper den med at reducere motorslid og opretholde optimal effektivitet, hvilket gør den ideel til både hverdagsbrug og krævende situationer. Bakket op af en 4,8-stjernet vurdering fra næsten 3.000 anmeldelser, giver denne 5-quart motorolie ro i sindet for køretøjsejere, der søger pålidelig motorpleje.

fordele
  • 4.8★ rating from 2,972 verified buyers
  • Currently $1 off regular price
  • 6k+ purchased last month
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"I am a shop and this is a good quality engine oil. The price was good and shippingWas quick. The bottle was well sealed with no leaks. I have used Castrol for years and have never had any issues with dirty engines. Engine performance is maintained and I can trust this brand."

— Amazon Customer
Tjek prisen på Amazon →
#6

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 quarts

by Castrol
$20.40 $23.72
★★★★★ (4.8)
7,942 anmeldelser

Vores bud

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil er designet specielt til køretøjer med over 75.000 miles, hvilket giver forbedret beskyttelse på tværs af syv kritiske områder for at fremme motorens levetid. Med en stærk 4,8-stjernet vurdering fra næsten 8.000 anmeldelser sikrer denne motorolie optimal ydeevne og pålidelighed for motorer med højt kilometertal. Priset til $20,40 repræsenterer det en værdifuld investering i at opretholde dit køretøjs sundhed og effektivitet.

fordele
  • 4.8★ rating from 7,942 verified buyers
  • Currently $3 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"I’m using this on my wife’s 2020 Palisade that is almost at 100,000 miles. The oil has worked great so far. No issues there. The engine is purring just like it should."

— Amazon Customer
Tjek prisen på Amazon →
#7

Pennzoil 10W-30 Motorolie, 1 liter

by Pennzoil
$6.48 $7.00
★★★★★ (4.8)
3,390 anmeldelser

Vores bud

Pennzoil 10W-30 motorolie giver enestående slidbeskyttelse og hjælper med at opretholde motorens renhed, hvilket sikrer optimal ydeevne for en bred vifte af benzinmotorer. Med en høj kundevurdering på 4,8 stjerner fra over 3.390 anmeldelser er denne motorolie et pålideligt valg til daglig motorvedligeholdelse. Priset til $6,48 giver den fremragende værdi, mens den fremmer motorens reaktionsevne og lang levetid.

fordele
  • 4.8★ rating from 3,390 verified buyers
  • Currently $1 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"I recently purchased the 10W-30 motor oil and have been very satisfied with the product. It arrived quickly, which I greatly appreciated, and was well-packaged to prevent any damage or leaks during transit.The oil itself performs reliably, providing smooth engine operation and consistent performance..."

— Amazon Customer
Tjek prisen på Amazon →
#8

Valvoline High Mileage MaxLife Technology 10W-30 Syntetisk blanding Motorolie 5 ...

by Valvoline
$19.97 $31.99
★★★★★ (4.8)
35,828 anmeldelser

Vores bud

Valvoline High Mileage MaxLife Technology 10W-30 Synthetic Blend Motor Oil is specifically designed for vehicles with over 75,000 miles, offering enhanced protection against oil leaks and consumption. This 5-quart formulation features advanced additives that help extend engine life and improve performance. With a strong 4.8-star rating from over 35,000 reviews, it is a trusted choice for maintaining the health of aging engines while delivering reliable lubrication.

fordele
  • 4.8★ rating from 35,828 verified buyers
  • Currently $12 off regular price
cons
  • Some note: issue isn't happening (yet) and her gas mpg has
  • Not Prime eligible - shipping times may vary
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"When my wife's 2016 Hyundai reached 100k miles, I noticed the engine was slightly noisier and was consuming a bit of oil between changes. It became apparent that the time to switch to a synthetic blend WAS NOW. I ended up going with this high mileage blend and I'm so glad that I did!My wife and I bo..."

— Amazon Customer
Tjek prisen på Amazon →
#9

Valvoline fuld syntetisk høj kilometertal 5W-20 motorolie 5 quart

by Valvoline
$26.97 $35.99
★★★★★ (4.8)
35,828 anmeldelser

Vores bud

Valvoline Full Synthetic High Mileage 5W-20 Motor Oil er designet med MaxLife-teknologi til at reducere olieforbruget og løse almindelige problemer i aldrende motorer. Denne 5-kvarts formulering forbedrer motorens ydeevne og levetid, hvilket gør den ideel til køretøjer med over 75.000 miles. Med en 4,8-stjernet vurdering fra over 35.000 anmeldelser tilbyder den dokumenteret beskyttelse og pålidelighed, hvilket sikrer, at din motor kører problemfrit i mange år fremover.

fordele
  • 4.8★ rating from 35,828 verified buyers
  • Currently $9 off regular price
cons
  • Some note: issue isn't happening (yet) and her gas mpg has
  • Not Prime eligible - shipping times may vary
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"When my wife's 2016 Hyundai reached 100k miles, I noticed the engine was slightly noisier and was consuming a bit of oil between changes. It became apparent that the time to switch to a synthetic blend WAS NOW. I ended up going with this high mileage blend and I'm so glad that I did!My wife and I bo..."

— Amazon Customer
Tjek prisen på Amazon →
#10

Castrol GTX Full Synthetic 0W-20 Motor Oil 5 Quarts

by Castrol
$23.96 $26.27
★★★★★ (4.8)
3,032 anmeldelser

Vores bud

Castrol GTX fuldsyntetisk 0W-20 motorolie giver overlegen motorbeskyttelse, der effektivt minimerer slid og forhindrer slamopbygning, selv under ekstreme køreforhold. Med en 4,8-stjernet vurdering fra over 3.000 anmeldelser er denne motorolie designet til at forbedre motorens ydeevne og levetid. Med 5 quarts giver det fremragende værdi til at opretholde dit køretøjs sundhed og effektivitet.

fordele
  • 4.8★ rating from 3,032 verified buyers
  • Currently $2 off regular price
  • 6k+ purchased last month
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Just what I needed for my 2021 Tacoma easy pour and smooth running engine. Nice clear oil and exactly what I ordered. Good price and fast shipping."

— Amazon Customer
Tjek prisen på Amazon →
#11

Castrol Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts

by Castrol
$27.48
★★★★★ (4.8)
12,434 anmeldelser

Vores bud

The Castrol Edge 5W rounds out our list as a reliable option in this category. Key specs include 5W of power. Customers consistently report high satisfaction with this purchase. At just $27.48, it's accessible for most budgets. With 4,000+ bought last month, it's clearly a popular choice.

fordele
  • 4.8★ rating from 12,434 verified buyers
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Quality synthetic. Keeps a 36 year old small block protected, smooth, powerful and quiet.Price is right!"

— Amazon Customer
Tjek prisen på Amazon →
#12

Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil 5 Quarts

by Castrol
$20.97 $23.72
★★★★★ (4.8)
3,700 anmeldelser

Vores bud

The Castrol GTX High Mileage 10W rounds out our list as a reliable option in this category. Key specs include 10W of power. Customers consistently report high satisfaction with this purchase. Currently 12% off at $20.97, it represents excellent value.

fordele
  • 4.8★ rating from 3,700 verified buyers
  • Currently $3 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Good price. Delivery quick."

— Amazon Customer
Tjek prisen på Amazon →
#13

Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20, 5 Quart

by Mobil
$27.97 $29.97
★★★★★ (4.9)
4,649 anmeldelser

Vores bud

The Mobil 1 High Mileage Full Synthetic Motor Oil 0W rounds out our list as a reliable option in this category. Key specs include 0W of power. Customers consistently report high satisfaction with this purchase. Currently 7% off at $27.97, it represents excellent value. With 2,000+ bought last month, it's clearly a popular choice.

fordele
  • 4.9★ rating from 4,649 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Quality engine oil at a good price. No leaks, engine is quiet and smooth. Does the job well!"

— Amazon Customer
Tjek prisen på Amazon →
#14

Pennzoil High Mileage 5W-30 Motor Oil, 1 Quart, Pack of 6

by Pennzoil
$26.98
★★★★★ (4.7)
770 anmeldelser

Vores bud

The Pennzoil High Mileage 5W rounds out our list as a reliable option in this category. Key specs include 5W of power. Customers particularly praise that it works great 👍🏼. At just $26.98, it's accessible for most budgets.

fordele
  • Customers say: "Works great 👍🏼"
  • 4.7★ rating from 770 verified buyers
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Works great 👍🏼!"

— Amazon Customer
Tjek prisen på Amazon →
#15

Castrol Edge 0W-20 Advanced Full Synthetic Motor Oil 5 Quarts

by Castrol
$27.48 $28.99
★★★★★ (4.8)
8,922 anmeldelser

Vores bud

The Castrol Edge 0W rounds out our list as a reliable option in this category. Key specs include 0W of power. Customers particularly praise that it great value for money in the presentation of 5 room. Currently 5% off at $27.48, it represents excellent value. With 3,000+ bought last month, it's clearly a popular choice.

fordele
  • 4.8★ rating from 8,922 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Very good product, the engine runs smoothly and protected. Ideal for modern and hybrid cars. Great value for money in the presentation of 5 rooms."

— Amazon Customer
Tjek prisen på Amazon →
#16

Royal Purple 51530 API Licensed SAE 5W-30 High Performance Synthetic Motor Oil 5...

by Royal Purple
$33.80 $47.24
★★★★★ (4.8)
10,095 anmeldelser

Vores bud

The Royal Purple 51530 API Licensed SAE 5W rounds out our list as a reliable option in this category. Customers consistently report high satisfaction with this purchase. Currently 28% off at $33.80, it represents excellent value.

fordele
  • 4.8★ rating from 10,095 verified buyers
  • Currently $13 off regular price
cons
  • Some note: But people on Subaru forums were recommending it
  • Not Prime eligible - shipping times may vary
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"I have had mixed feelings about Royal Purple in the past - I think the coloring is a bit gimmicky. But people on Subaru forums were recommending it. I traded in my '99 Subaru Outback for a 2025 Outback last year, so I decided to try Royal Purple. I did my first oil change at about 2,500 miles since ..."

— Amazon Customer
Tjek prisen på Amazon →
#17

Mobil 1 High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart

by Mobil
$27.97 $29.97
★★★★★ (4.8)
50,187 anmeldelser

Vores bud

The Mobil 1 High Mileage Full Synthetic Motor Oil 10W rounds out our list as a reliable option in this category. Key specs include 0W of power. Customers consistently report high satisfaction with this purchase. Currently 7% off at $27.97, it represents excellent value.

fordele
  • 4.8★ rating from 50,187 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Always buy this for my car. Works well."

— Amazon Customer
Tjek prisen på Amazon →
#18

Castrol GTX 5W-30 Synthetic Blend Motor Oil 5 Quarts

by Castrol
$20.97 $23.72
★★★★★ (4.8)
2,721 anmeldelser

Vores bud

The Castrol GTX 5W rounds out our list as a reliable option in this category. Key specs include 0W of power. Customers particularly praise that it excellent price. Currently 12% off at $20.97, it represents excellent value.

fordele
  • Customers say: "Excellent price"
  • 4.8★ rating from 2,721 verified buyers
  • Currently $3 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Excellent price!!"

— Amazon Customer
Tjek prisen på Amazon →
#19

Mobil Full Synthetic Motor Oil 5W-30, 1 Quart, Pack of 6

by Mobil
$29.98 $31.99
★★★★★ (4.8)
2,483 anmeldelser

Vores bud

The Mobil Full Synthetic Motor Oil 5W rounds out our list as a reliable option in this category. Key specs include 5W of power. Customers particularly praise that it great price. Currently 6% off at $29.98, it represents excellent value.

fordele
  • Customers say: "Great Price"
  • 4.8★ rating from 2,483 verified buyers
  • Currently $2 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Great Performance and Great Price Too!"

— Amazon Customer
Tjek prisen på Amazon →
#20

Castrol GTX 10W-30 Conventional Motor Oil 5 Quarts

by Castrol
$20.97 $23.72
★★★★★ (4.8)
4,200 anmeldelser

Vores bud

The Castrol GTX 10W rounds out our list as a reliable option in this category. Customers particularly praise that it great price. Currently 12% off at $20.97, it represents excellent value.

fordele
  • Customers say: "great price"
  • 4.8★ rating from 4,200 verified buyers
  • Currently $3 off regular price
cons
  • Not Prime eligible - shipping times may vary
  • Compare specs with alternatives before deciding
Hvad kunderne siger
★★★★★ Top anmeldelse Verificeret køb

"Great oil at a great price. Delivers fast and runs great in my 4wheeler."

— Amazon Customer
Tjek prisen på Amazon →

Ofte stillede spørgsmål

Hvad er den bedste motorolie til køretøjer med høj kilometertal?

For high mileage vehicles, Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20 is an excellent choice, especially considering its high rating of 4.8★ from over 50,000 reviews. It is designed to reduce wear and tear on older engines, making it a reliable option for vehicles with over 75,000 miles.

Hvordan vælger jeg den rigtige viskositet til min motor?

Den rigtige viskositet afhænger af dit køretøjs krav, som kan findes i instruktionsbogen. For eksempel, hvis dit køretøj specificerer 5W-30, kan du overveje Valvoline Advanced Full Synthetic SAE 5W-30, som er godt vurderet til 4,8★ og prissat til $26,97, da det tilbyder fremragende motorbeskyttelse og brændstofeffektivitet.

Hvad skal jeg overveje, når jeg sammenligner mærker af motorolie?

Når du sammenligner mærker, skal du overveje den anvendte teknologi og dit køretøjs specifikke behov. For eksempel giver Valvolines MaxLife-teknologi i deres olie med høje kilometertal ekstra beskyttelse til ældre motorer, mens Mobil 1 er kendt for sine avancerede syntetiske formuleringer, der forbedrer brændstoføkonomien og ydeevnen.

Hvad er et rimeligt budget for at købe motorolie?

You can find quality motor oils in a price range from $6.48 to $33.80, so it's possible to stay within a reasonable budget while still selecting a reputable product. For example, Valvoline High Mileage with MaxLife Technology SAE 5W-20 is priced at $19.97, offering a good balance of quality and affordability.

Hvor ofte skal jeg skifte min motorolie?

Generelt anbefales det at skifte din motorolie hver 5.000 til 7.500 miles, men dette kan variere baseret på olietypen og køreforholdene. Hvis du bruger fuldsyntetiske olier som Mobil 1 eller Valvoline, kan du muligvis forlænge dette interval, men tjek altid din brugervejledning for specifikke anbefalinger.

Hvad er fordelene ved at bruge fuld syntetisk motorolie?

Fuld syntetiske motorolier, såsom Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, tilbyder overlegen motorbeskyttelse, forbedret brændstofeffektivitet og bedre ydeevne i ekstreme temperaturer sammenlignet med konventionelle olier. Dette er især fordelagtigt for moderne motorer, der kræver højtydende smøring.

📖 Complete Buying Guide: motorolier

Motor Oils: Viscosity Ratings, Synthetic vs Conventional, and Engine Protection

Motor oil lubricates engine components, reduces friction, and protects against wear. Understanding oil specifications helps select appropriate motor oil for your vehicle.

Viscosity Explained

SAE ratings indicate flow characteristics.

5W-30, 0W-20, etc.

W = winter performance.

Second number = operating temperature viscosity.

Conventional Oil

Refined from crude oil.

Adequate for many vehicles.

Lower cost.

More frequent changes typically needed.

Synthetic Oil Benefits

Engineered molecular consistency.

Better temperature performance.

Extended drain intervals possible.

Higher cost justified for many uses.

Full Synthetic vs Blend

Full synthetic: all synthetic base.

Synthetic blend: mix with conventional.

Blend offers partial benefits at lower cost.

Full synthetic for maximum protection.

API and ILSAC Ratings

Certification of oil quality.

Current: API SP, ILSAC GF-6.

Backward compatible.

Look for current ratings.

Manufacturer Specifications

Check owner's manual requirements.

BMW, Mercedes, VW have specific specs.

Using wrong oil can void warranty.

Match manufacturer requirements.

Climate Considerations

Cold climates: lower W number.

Hot climates: appropriate operating viscosity.

Multi-grade oils cover range.

Match to your typical conditions.

Change Intervals

Conventional: 3,000-5,000 miles typical.

Synthetic: 7,500-15,000 miles possible.

Follow manufacturer recommendations.

Severe driving shortens intervals.

High-Mileage Oils

Formulated for older engines.

Seal conditioners reduce leaks.

75,000+ mile engines.

May extend engine life.

Brand Considerations

Major brands (Mobil 1, Castrol, Pennzoil, Valvoline).

Quality largely consistent among majors.

Meeting specifications matters most.

Don't overpay for brand.

DIY vs Shop Changes

DIY saves money.

Proper disposal required.

Shop convenient for many.

Oil change places use adequate products.

Practical Recommendations

For most modern vehicles, manufacturer-specified viscosity in quality synthetic ($25-40 for 5 qts).

Check owner's manual for required specifications before purchasing.

High-mileage formulas for older engines with 75,000+ miles.

Don't exceed recommended change intervals regardless of oil type.

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