Engine oil Mobil or RED LINE

RED LINE Engine oil

In my experience of trying many different oils, what I think are the best, as far as the engine running cool and smooth shifting are: 1. Redline 15w50

Pros: engine running cool
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Mobil Engine oil
m8ishere1
  • Engine noise:
  • Exhaust smoke:
Rating 5.0

I noticed a massive difference switching from 0w-30 to Mobil 1 FS 5w-40 in my NG 93. Engine sounded better, burned WAY less oil, and no noticeable fuel economy or power difference. I also used Ceratec a few times and that made it feel smoother.

Pros: engine sounded better, less oil burned
Vehicle: Saab
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Mobil Engine oil
Dean-KS
  • Engine noise:
Rating 4.0

Ran quieter on 5-40 heavy duty diesel Mobil 1

Felt more powerful, but that may have been a perception from quieter and smoother power. Others on Saabnet reported the same.

Pros: quieter, smoother power
Vehicle: Saab 900
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Mobil Engine oil

If you're oil change is specified for longer, buy Mobil 1 in the correct spec grade and change it then, you will save money and use less, which will keep your cash in your pocket not the oil industry's.

Pros: save money and use less
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Mobil Engine oil
EvilHavoc
  • Engine noise:
Rating 5.0

Make sure to use dexos GM approved oil or that thing will start making weird noises. I’ve only used Mobil 1 and not had any issues. Stay away from the cheapest stuff. You might regret it later.

Pros: no issues with Mobil 1
Cons: cheap oil causes noises
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Mobil Engine oil
OLD-NSU-TECH
  • Exhaust smoke:
Rating 4.0

140K '19 Tigi 2.0T, switched from Valvoline 5W20 Syn to Mobil 1 0W20 ESP (Dexos D). Changed oil due to oil consumption and secondary air injection DTC. The "latest" member of the Mobil 1 family touts lower emissions (less vapor in the PCV system).

Pros: lower emissions, less vapor
Cons: oil consumption, air injection DTC
Mileage: 140000 km
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Mobil Engine oil
varexio
  • Engine noise:
Rating 5.0

Mobil1. Period. Years of personal experience. When I was in my 20's twenty years ago I was using Motul too because everyone else was and I didnt know any better. Try them out. Detergents, how clean the oil remains after each oil change and how smooth it runs were some deciding factors for me.

Pros: clean oil, smooth run
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