Engine oil Mobil or Motorcraft

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

Been using Mobil 1 5w-30 full synthetic since I rolled it off the lot. Zero issues. I do my own changes every 3-5k. I did swap out to the FL400s filter to make it an even 6qts.

Pros: zero issues
Vehicle: Ford Focus
Part number: FL400S
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Mobil Engine oil

Funny, I changed my oil today for the first time as well. Also 1700 miles. Not black but certainly a lot darker than the Mobil One 0w40 that replaced it..

Pros: darker than Mobil One
Cons: oil darker
Mileage: 1700 km
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Mobil Engine oil
aphythiate
  • Exhaust smoke:
Rating 2.0

I used 0-40 mobil 1. It turned out pretty bad for me, I ended up using more oil than I ever had before. The car smelled like a friggin chainsaw with that stuff. The engine only had like 100k on it, but the blowby was horrible with 0-40. This was just my experience. I use mobil 10-40 now and no problems so far.

Pros: no problems so far
Cons: blowby was horrible
Mileage: 100000 km
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