Another Oil Question Thread...

[Rick L]

I heard the quality of Mobil 1 is not what it used to be. My understanding is that it is no longer true synthetic oil anymore do to loosing their case with Castro. I still use Mobil 1 0w-40 in my E34. Has this altered your decision in anyway? Also, have you seen the new high mileage Mobil 1? Anyone using this in you E34?

[attack eagle]

say no to high mileage mobil 1. I know two people who lost otherwise perfectly good engines immediately after using the stuff.

I still use good old castrol dino, changed every 3-4k.

I've never had a problem with it, had Chevy 350 s go 300,000k + with it, and had turbo i4 engines apart after 50k with 0 wear.

[Ferret]

say no to high mileage mobil 1. I know two people who lost otherwise perfectly good engines immediately after using the stuff.

I still use good old castrol dino, changed every 3-4k.

I've never had a problem with it, had Chevy 350 s go 300,000k + with it, and had turbo i4 engines apart after 50k with 0 wear.

I've recently read a real-world test report that showed Mobil 1 to be one of the worst oils on test... I need somewhere to host the PDF to post it back up for all to see.

EDIT: B*llocks, it's on my other disk at home, will hunt it down this evening when I get home from work and post it up somewhere.

[bmwrp8]

I heard the quality of Mobil 1 is not what it used to be. My understanding is that it is no longer true synthetic oil anymore do to loosing their case with Castro. I still use Mobil 1 0w-40 in my E34. Has this altered your decision in anyway? Also, have you seen the new high mileage Mobil 1? Anyone using this in you E34?

By chance almost all of us in bmw e34 car club of the philippines uses castrol magnatec...dunno but I find castrol better than mobil1

[filip00]

my car has 255k km, that's around 160k miles, and i used to use MobilS 10w40. i was very unhappy with oil consumption and the way engine worked, and i switched to ARAL 10w40, it's good now.

[ThoreauHD]

I've read the same thing and asked the same question here but never got an answer due to post deletion. I have have decided that since I actually want to keep my car that I'm going to start using Amsoil/Redline 5w-40. The cost is about the same, and I know it's true syth. So I won't be running 10K miles on hydrocracked dinosynth and find out too late that I just ****ed myself. So I ordered a crate of Amsoil from their website and done and done. Whether my post or this one gets terminated or not, it's no longer my problem.

[Russell]

No Mobil 1 for me. 0w40 seems very noisy in my 95 525i. I currently use a brew of 4 quarts of 5w50 and 2 quarts of 10w40 castrol syntex. Seems to be much quieter and no cold start rattle I had with thicker oil like 15w40 or even 10w40 in the winter. Just my observation.

[BFEINZIMER]

Castrol GTX High Mileage 20w-50 right here!