hey guys, what kind of oil do all the leading workshops recommend?
the people at Penrite recommended this certain type of mineral oil, ($280 for 20L) then we put it in my brothers car and now its running shocking...

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Winning the award for slowest build in history.

a bit more info ^^^^

i had some kind of LSD oil in there before, now i have put in some Penrite Sin 75, and it feels alot more notchy, and wont slide into gear as easy - have to force it a bit more. have been running in for 3-4 days now and no improvement.

everyone says redline oil... is that synthetic also?

I run Castrol Multitrax with no problems in gearbox and diff and it isnt expensive......

+1 no problems with Multitrax. Ask your brother he knows how i treat my gearbox

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....slow and steady wins the race....fark that!!