Reply to "Motor oil"

lousbbyMember

My engine is basically stock and recently rebuilt with a stock oil pump. The first few oil changes I used VR1 10w30 because of the zinc and was happy with it. My last oil change I went with the VR1 20w50 as it was the only VR1 I could get at the time and the oil pressure seems kind of high when cold. In my previous motor I was running Mobil 1 and it wore out the bearings I guess it was too thin. Not sure what is causing your sludge but I’d stick with VR1 and possibly try 10w40?

9/15/206:31 PM

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