Author Topic: What Is The Best Oil? (Read 5530 times)

E-30Dubbsz · « **on:** November 18, 2007, 11:13:55 PM »

I just got my 1991 e30 318is m42 it has 239000km on it but it runs strong. Im feeding it 91 octane and planning on getting a full tune-up in the next couple weeks. I'm also doing the oil change so i can also check for lose oil pan bolts:)

Im thinking of putting synthetic or semi-synthetic oil in for my oil change. I want to know which one is better for my motor or even if a totally different one is better please suggest it. Even the best brand would help out too. Any advice is good to me.

-Dubbsz

asubimmer · « **Reply #1 on:** November 18, 2007, 11:23:14 PM »

I always run redline for every fluid in my cars including the motor oil

E-30Dubbsz · « **Reply #2 on:** November 18, 2007, 11:41:51 PM »

is that full synthetic?

strad · « **Reply #3 on:** November 18, 2007, 11:52:16 PM »

Yes. Redline is synthetic, and it's good stuff.

I run castrol syntec personally -- I believe it burns very little if any. And I have over 300,000 kms.

tjts1 · « **Reply #4 on:** November 19, 2007, 02:09:14 AM »

I don't know what the best oil is but I'm partial to Rotella 5w40 synthetic. Usually keep it in there for 7-8k miles.

MrCleanE30 · « **Reply #5 on:** November 19, 2007, 07:50:07 AM »

I have been a user of AMSOIL, they were the first in Synthetics and I figure they probably have the most R&D experience as well.

RED IS 91 · « **Reply #6 on:** November 19, 2007, 08:16:19 AM »

Use the search engine .

You will get as many answers as there are oils including not using synthetic because your engine will spring leaks if it's a high mileage engine.
As for me I use 15/50 mobil one.

welcome to the group and good luck with your new purchase

E-30Dubbsz · « **Reply #7 on:** November 19, 2007, 10:09:59 AM »

Quote from: RED IS 91;37918

Use the search engine .

You will get as many answers as there are oils including not using synthetic because your engine will spring leaks if it's a high mileage engine.
As for me I use 15/50 mobil one.

welcome to the group and good luck with your new purchase

thanks, ive been waiting a long time to be a part of it ... even though my car is in bad shape body wise it runs beautifully wit 239000km on it. I think i might go for a high mileage motor oil then to be on the safe side.

JHZR2 · « **Reply #8 on:** January 05, 2008, 09:20:56 PM »

Amsoil AFL European 5w-40:
http://www.amsoil.com/storefront/afl.aspx?zo=1556971

Good viscosity, good HTHS for out variety of engines. Top notch synthetic oil formulation.

JMH

P. Kennedy · « **Reply #9 on:** January 05, 2008, 10:11:14 PM »

+1 for Shell Rotella 5w-40

teamgtnfx01 · « **Reply #10 on:** January 05, 2008, 10:14:34 PM »

dam i have 66k and use regular conventional oil such as shell but my last oil change i put in some 10w 40 castrol

am i doing something wrong

sheepdog · « **Reply #11 on:** January 06, 2008, 11:39:26 AM »

Quote from: tjts1;37910

I don't know what the best oil is but I'm partial to Rotella 5w40 synthetic. Usually keep it in there for 7-8k miles.

Agreed, after seeing what has happened with oils over the years, this is the safest bet.

JHZR2 · « **Reply #12 on:** January 06, 2008, 06:55:22 PM »

my only gripe against rotella is that if the engine burns oil, the HD diesel oils will destroy the catalytic converter faster than non HD oils. It has to do with the presence of zinc and phosphorous AW adds. it is the greatest bang for your buck oil out there, though, IMO.

JMH

Jak318 · « **Reply #13 on:** January 06, 2008, 07:21:33 PM »

Quote from: JHZR2;40599

my only gripe against rotella is that if the engine burns oil, the HD diesel oils will destroy the catalytic converter faster than non HD oils. It has to do with the presence of zinc and phosphorous AW adds. it is the greatest bang for your buck oil out there, though, IMO.

JMH

I don't know for sure about destroying a Cat, but it is the oil I used in my dump trucks for over 5 years and I never had any trouble with the Rotella HD oil. Of course there is no cat to ruin on those big rigs. As for my car I run Castrol Syntec.

tjts1 · « **Reply #14 on:** January 06, 2008, 07:28:25 PM »

If the engine burns enough oil to worry about the health of the cat, you have bigger problems to worry about than your next emissions test.

Author Topic: What Is The Best Oil? (Read 5530 times)

E-30Dubbsz

E-30Dubbsz

MrCleanE30

E-30Dubbsz