Which engine oil do you use? - The Unofficial BMW M5 Messageboard (m5board.com)

banker415 · 14th July 2003, 09:53

Please post the viscosity grade you use if you don't use 5W30. Thanks!

lasseoe · 14th July 2003, 12:55

I don't have the oil right here so I am not sure exactly which one it is on the list.

But I do know that it's the BMW (Castrol) TWS 10W60 oil.

DavidS · 14th July 2003, 14:16

Me too. (Castrol TWS 10w60 from BMW)

David

kwalls · 14th July 2003, 15:24

Same here, it's the BMW (Castrol) TWS 10W60 oil.

In fact, probably the only one here in Germany if you want to keep your warranty

3house · 14th July 2003, 16:44

BMW (Castrol) TWS 10W60 oil

TriflowM5+M3 · 14th July 2003, 16:55

Guess im not one of the 10W60 guys...5W30 although i do put in some 10W30 since im here in FL...

Use the BMW stuff or if i need something in a bind, Mobil 1..hands down

Ashok Arora · 14th July 2003, 16:56

Me too - Castrol TWS 10W60

banker415 · 14th July 2003, 23:32

Have you guys noticed a change in performance with 10W60?

kwalls · 15th July 2003, 00:09

banker415
Since my car has had this since day one, there has been no change. Personally, I don't think that today's multi-grade oils are going to show a difference in an engine that already has the power of the M5 engine. I think the only performance difference will be the miles between oil fill ups and maybe a mpg or two. However, that assumes one drives constantly the same with both type of oils in their crank.
Ken

Need4Spd · 15th July 2003, 00:25

You need to edit your poll. I'll bet that many of us use Castrol TWS 10w-60 regardless of whether we "need" to, and if we're wedded to this viscosity, we're stuck with that single vendor. Those who use 5w-30 have lots more options. If I were using that grade (which according to BMW I "can" but don't), I'd probably use the BMW stuff when the dealer puts it in, but Mobil 1, Redline or Royal Purple if I did it myself.