“I have used Valvoline VR1 20w50 in my FIA historic 1965 Race MGB car and it provides excellent protection with its increased zinc content. The oil pressure is maintained at 50 to 75 psi even when very hot.
I build my own engines and they produce around 160 bhp and the oil quality is extremely important, it’s an engines ‘life blood’. I do change the oil more frequently than for a road car and oil analysis can provide important information regarding the engines condition - but in the 5 years I have been using this oil I have not had any engine failures.”
“I have used Valvoline 20/50 for over 70000 miles in a Sunbeam Tiger V8. Oil changed every year.
Oil pressure has stayed excalty the same over this period, including many European trips to hot countries.
Also in my Jaguar Etype 4.2 since purchase 2 years ago. A superb oil for classic cars.”
