The 508 spec gets you better mpg and less dirty emissions. Gotta look at the bottle carefully. Mobil ESPX2 0w20 has that spec.
262k miles here on an M54B30 with 10k changes, Mobil 1, it's running great.
It should be fine. I use Mobil 1 and it's worked great.
Fellow mu-X owner here! If you're thinking about upgrading from the standard Isuzu Genuine Motor Oil 10W-30, check out the ZIC X7 Diesel 10W-30 Fully synthetic. I used Amsoil Turbo Truck 5w40 too (10k km interval) but it's expensive for my Garage queen mux haha. Mobil Delvac1 5W-40 is good as well.
I use Mobil one in Canada when it goes on sale synthetic 0W20 10 k intervals 13 yr old corolla 1.8 and 15 yr old tundra 5.7 350 k and 320 km ; no oil consumption work great
I have Signature in my 25. Smoothed out the engine noises quite a bit.
You must use Mobil 1 0W40!
Go for 5W40 rating. They work the best for all BMW diesel engines. I’d recommend the Mobil 1
My biggest regret, not swapping out the shitty 0w-20 factory filled oil for some 5w-30 Amsoil, Motul, or Pennzoil Ultra platinum the moment I took it home. Don\u2019t wait till 1k miles.
Mobil 1 for me is like water in this car. I ran it for the longest time till I was tuned but switched over
Write your review
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
If choosing engine oil across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare engine oil across these categories:
In March 2026 on PartReview, engine oil Mobil were overall better than AMSOIL.
In March 2026 on PartReview, engine oil Mobil were overall more popular than AMSOIL.
By vote balance, engine oil Mobil surpassed AMSOIL:
By number of reviews, engine oil Mobil surpassed AMSOIL:
In March 2026, according to PartReview, engine oil Mobil led more car-specific ratings than AMSOIL:
Mobil are chosen by owners of cars such as: Chevrolet Camaro, Infiniti G, Lexus IS, Opel Astra, Volvo V70, Chevrolet Corvette, Chevrolet Silverado, Ford Focus, Ford Mustang, Ford Ranger, Hyundai Sonata, Hyundai Tucson, Hyundai Veloster, Mazda 6, Volkswagen Jetta, and others.
AMSOIL are chosen by owners of cars such as: Honda S2000, Toyota 4runner, and others.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of engine oil Mobil with: Castrol, LIQUI MOLY, MOTUL, Shell, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota, Mannol, RAVENOL.
Also available: comparisons of engine oil AMSOIL with: Castrol, LIQUI MOLY, MOTUL, Shell, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota, Mannol, RAVENOL.
You can also see who is better among other engine oil manufacturers: Mobil or Castrol, Mobil or LIQUI MOLY, Mobil or MOTUL, Mobil or Shell, LIQUI MOLY or Castrol.
