HendrixsWhiteStratReturns Posted August 21, 2019 Share Posted August 21, 2019 To the OP.I'd get that thinner oil out of there pronto chap !Oil does IMHO make a big difference for Xflows and Valvoline VR1 20w 50 mineral racing oil is the best for your car. I also use an additive as mine hasn't got an unleaded head ( I use Castrol Valvemaster ...managed to buy in bulk before they discontinued it).My car is a 1990 Xflow Supersprint - 24k on the clock Link to comment Share on other sites More sharing options...
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