what oil is everyone running? 7K+ RPM

#3
Thor is pag based and primarily for karts where it is changed often. I use valvoline vr1 regular for run in then synthetic after it is broken in. My minis sit for long periods of time so I need something to protect the insides during periods of sitting in a shed. My dragbikes turn around 7500 max and I’m using 10w 30 vr1.
 
#4
I use Pennzoil platinum synthetic, it keeps the engine from running too hot really well.
I don't really rev up high, but i do rev up to like 4k - 6k
 
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