what type of oil does everyone run? m50tu

[arams325]

I have read alot of mixed reviews regarding weight of oil used in a m50, some say synthetic others wont touch it with a 10 ft pole, what do you run and why? im looking at a 15w 40 for the summer, some are running 5w30. i live in new England, i know choice of weight depends on temp winter vs summer. but their don't seem to be to many options in a 15w 40 basically just diesel oil

[K1CKBAC]

I run 20w-50 non synthetic. I live in Southern California.

[dashboardmonkey]

15w-40 delo 400

High mileage motor, 275k. Heavy duty oil.

[36brua]

This will get you started

http://www.r3vlimited.com/board/showthread.php?t=244142

[arams325]

Thanks for the link. just alot of mixed reviews in that thread

[butters]

shell rotella T6 5w-40

/thread

[BenM]

I run regular dino oil in all of my m20/m30/m50/m52/s50/s52 cars, 20W50 in spring/summer/fall, 10W40 in the winter.

They all get regular oil/filter changes at 3-5K miles, except for the track car which I change once every 4 events.


M20/M30 get oil with high ZDDP content, M5X/S5X do not.

[blackhawkimpact]

shell rotella T6 5w-40

/thread

This. Was using Mobile 1 15-50 and kept getting ticking noise from the lifters. Switched to Rotella and ticking went away :]

[frankie591]

I use kendall gt1 in mine. 20w50 summer and 10w40 winter

[Jand3rson]

shell rotella T6 5w-40

/thread

Same here. Dirt-cheap at Wal-Mart. One of the only reasons I will set foot in that shithole.

[arams325]

I think im gonna try out the shell rotella T6 5w-40 as a few recommend it. I may step it up in the summer. do you guys run this stuff year round? i was thinking of using a conventional oil as that is what has been run thru by the previous owner

[5Toes]

currently have 10W30 castrol gtx thats like a decade old in there. Not too loud at all, motor likes it

[butters]

I think im gonna try out the shell rotella T6 5w-40 as a few recommend it. I may step it up in the summer. do you guys run this stuff year round? i was thinking of using a conventional oil as that is what has been run thru by the previous owner

I asked the seasonal question myself, and the consensus was to use it year round. Certainly no need to step up from it in the summer, I had actually asked if I should consider a lighter weight or brand in the winter.

if you know for sure that the motor currently has dino oil and was consistently run on that, I would reconsider switching to synthetic. I've heard switching can create trouble, and you might be better off finding the best dino oil and keeping it consistent.

[arams325]

I have been questioning running synthetic, some say its better for a vanos motor but i dont know, i have replaced front and rear crank seals valve cover gasket oilpan gasket oil level o ring dipstick o ring so i shouldn't leak

[Nick_S]

I run Castrol high mileage 20w-50 in my E34. Going to try synthetic next oil change.