shavenYak Posted September 12, 2015 Share Posted September 12, 2015 Would it be OK to use Castrol epx 80w90 in a manual gearbox? Manual says to use Castrol vmx, but I've already got a couple bottles of the epx. Car is a corolla with 4A-F Quote Link to comment Share on other sites More sharing options...
SOHC Posted September 12, 2015 Share Posted September 12, 2015 I wouldn't Castrol epx 80w90 is for a GL5 application, and VMX is a GL4, Quote Link to comment Share on other sites More sharing options...
ajg193 Posted September 12, 2015 Share Posted September 12, 2015 Stay away from GL5 if the transmission has brass synchros. EP additive makes the gears hard to change when cold and also slowly shreds your synchros as the EP additive bonds more strongly to the surface of the brass than the brass does to itself. Get some VMX, it's like $60 for 4 L or something on a normal day. Quote Link to comment Share on other sites More sharing options...
SOHC Posted September 12, 2015 Share Posted September 12, 2015 it turns the bronze green sometimes to Quote Link to comment Share on other sites More sharing options...
shavenYak Posted September 12, 2015 Author Share Posted September 12, 2015 Cool, cheers guys Quote Link to comment Share on other sites More sharing options...
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