Andy Tims Posted May 22 Share Posted May 22 Sorry if covered before (I did search), but I've been given 3 different engine oil grade recommendations from well regarded sources. What are 620 owners using please? Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 22 Member Share Posted May 22 The current Owner's Handbook has: Jonathan Link to comment Share on other sites More sharing options...
Andy Tims Posted May 22 Author Share Posted May 22 Thanks. The owners manual I have says 10W60, but HWM & GP Sevens both use 5W50 Link to comment Share on other sites More sharing options...
pgm Posted May 23 Share Posted May 23 I think you will find that Caterham go with who ever their latest sponsor is, hence their being alternative guidance in the service books. We use the 10W60 as a preference. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 23 Member Share Posted May 23 10 minutes ago, pgm said: I think you will find that Caterham go with who ever their latest sponsor is, hence their being alternative guidance in the service books. We use the 10W60 as a preference. The recommended supplier clearly changes. But would that also apply to recommended grade? Thanks Jonathan Link to comment Share on other sites More sharing options...
David JLM Posted May 23 Share Posted May 23 3 hours ago, Jonathan Kay said: The recommended supplier clearly changes. But would that also apply to recommended grade? Thanks Jonathan I would have thought so. Assuming the same quality/longevity, one is a lot more viscous than the other so quite a difference in theory. Link to comment Share on other sites More sharing options...
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