Engine oil Mobil or Shell

Mobil
vs
Shell

1748

620
50
37
707
4.4
Engine noise
4.3
Exhaust smoke
4.3
Warning light
4.5
PR Score
Ranking
Votes
Reviews
Average rating
Properties
Car

944

325
16
10
351
4.5
Engine noise
4.3
Exhaust smoke
4.2
Warning light
4.3
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Mobil Engine oil

I change mine about every 4500 miles or so and I use Mobil 1 oil. Manufacturers love to point out how little it costs to maintain their vehicles but changing your oil every 10k will ensure you’ll be replacing your vehicle sooner than later and that benefits the dealership.

Pros: vehicle longevity
Mileage: 7242 km
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Mobil Engine oil
afgan1984
  • Exhaust smoke:
Rating 5.0

I used to run 0W40 in Lexus IS250 (4GR-FSE engine) with great results, towards the end of it's life (maybe... the car was stolen at around 200k miles, so not sure when it actually died) it was burning little bit of oil when 5W30 was used. However, I have noticed that when I changed for 0W40, it has not burn any oil at all and oil was noticeably cleaner.

Pros: oil noticeably cleaner
Cons: cost, longevity
Vehicle: Lexus
Mileage: 200000 km
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Mobil Engine oil

Fellas, Don't bother running Mobil1 for extended period of time. I have done 2 consecutive oil tests on Mobil1 0W-40. One with 6200 miles and the other was at 4700 miles. Used OEM filters in both cases. Results: With the 6200 mile drain interval, the iron and the lead levels were up there through the roof! With the 4700 mile drain interval, the iron was within average and the lead was couple of points above the average.

Pros: iron within average
Cons: high iron and lead
Mileage: 6200 km
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