Hi all,
Just wondering if any of the UK E31 owners have any thoughts on the best all round engine oil viscocity for the UK climate? Any particular preferences for a particular brand?
Cheers
Castrol Edge 0w-40 or 5w-40,
MUST be European Formula!
the best all-around oil in ANY BMW.
My go to oil in most engines.
+1 ^ Edge is a great oil . I only use oil that meets VW spec 505.01 or the long life version 507.00 on all my vehicles. Oil meeting this standard gives additional protection due to its long lasting film strength. Basically VW PD engines run the injectors onto the cam requiring this added protection to stop cam wear.
I'm using Castrol GTX 10W-40, it's a bit quieter than the usual Magnatec - more info here:
http://www.meeknet.co.uk/e31/BMW_E31...ter_Change.htm
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
My BMW Repair YouTube Channel
My Current 840ci Sport Individual
My Current 650ci Sport Individual
My E31 Repair and Information Website
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Chase - Heroes to a generation
On older vehicles, where synthetic oil is NOT required,
Castrol GTX 10W-40 IS my oil of choice also.
Btw, it is the only oil l have ever used on my 1996 Nissan Sentra,
and engine still humming along quietly at 70,000mi.
I'm using Castrol Edge 10W-60 in the S70 engine, with no complaints.
I'm assuming that many of you northern hemisphere owners maintain the practice of switching oil grade/viscosity with the change of season?
Not really an issue here in northern NZ, where temperatures don't get too severe at either end of the mercury scale.
Current:
1994 E31 850CSi Sterlingsilber/Anthracite Buffalo
Previous:
1987 E28 M5 Delphin
1986 E23 M745iA Arctic Blue
1986 E24 635CSi Polaris
1976 E3 3.0 Si Arctic Blue
I'd use something high in Zinc.
Also to note Edge 5w40 probably isn't available in the UK, and is 20 years old at this point. The 0w40 is much better.
Last edited by XAlt; 02-25-2018 at 04:01 PM.
The 0W-40 makes the M62 engine a bit 'tappety'!
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
My BMW Repair YouTube Channel
My Current 840ci Sport Individual
My Current 650ci Sport Individual
My E31 Repair and Information Website
My E38 Repair and Information Website
My E63/E64 Repair and Information Website
Chase - Heroes to a generation
Guys thanks for the feedback, going to give this stuff a try:
Shell Helix Ultra 5W-40 5L https://www.amazon.co.uk/dp/B004HL1H..._XUyNAbGYFYAV9
Now to decide on a suitable replacement transmission fluid...
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