Originally Posted By: OVERKILL
Originally Posted By: Clevy
And BMW specifies a 10w-60 to cover their rears,period. It's a bandaid fix.
No, as has already been mentioned, BMW specs/spec'd the TWS 10w-60 because it is a known quantity to them and is necessary in some engines for proper protection at Autobahn speeds and the oil temps that go along with them.
That said, there were two cars/engines that BMW "band-aided" with the TWS product, the first was the E46 M3 and the S54 engine, which was having rod bearing failure issues. The TWS was then spec'd for it as apparently it was thought it would reduce the failures. There was eventually a recall for this problem. The second was the E39 M5 prior to 03/00 to deal with the ultra low tension rings and excessive oil consumption. Post 03/00 cars spec'd LL-01 as they received revised rings that fixed the issue.
Certainly the Z4M required 10w-60. And it wasn't a band aid.
Originally Posted By: Clevy
And BMW specifies a 10w-60 to cover their rears,period. It's a bandaid fix.
No, as has already been mentioned, BMW specs/spec'd the TWS 10w-60 because it is a known quantity to them and is necessary in some engines for proper protection at Autobahn speeds and the oil temps that go along with them.
That said, there were two cars/engines that BMW "band-aided" with the TWS product, the first was the E46 M3 and the S54 engine, which was having rod bearing failure issues. The TWS was then spec'd for it as apparently it was thought it would reduce the failures. There was eventually a recall for this problem. The second was the E39 M5 prior to 03/00 to deal with the ultra low tension rings and excessive oil consumption. Post 03/00 cars spec'd LL-01 as they received revised rings that fixed the issue.
Certainly the Z4M required 10w-60. And it wasn't a band aid.