Castrol Edge versus Castrol RS
Anyone know the difference? Is it just re-marketing?
Bob Rawle recommended in the past that I use RS 10/60 - the 60 because of occasional track work, where he said 40 has an increased risk of breakdown.
I notice Bob seems to recommend Shell Helix 10/40 now, according to the Worzel. Interesting.
Any views please?
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Toyobaru 86 with Cosworth exhaust brakes and supercharger, Cosworth mapping, Eibach lowering springs, OZ alloys, fast road geo and various cosmetics. Great fun! 
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