Quote:
Originally Posted by Rick Sanchez
I’ll ask a stupid question here on oil grades. Both 0w30 and 5w30 looks to be approved for my F31 335d and appreciate not likely to be a huge difference on cold flow rate between 0 and 5 but…as BMW and whoever make their approved oil don’t do 0w30 in anything other than 1 litre or like massive drums, would it cause any harm/issue say doing an alternate change for winter and use 0w30 and then a summer change using 5w30?
0w30 is like what £12 a litre versus the FB deal posted of £5 a litre for 5w30.
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Just stick with 5W30; no need for 0W30 really in the UK
0W30 is better suited to much colder climates IIRC