scott87 Posted May 2, 2014 Share Posted May 2, 2014 As im now running a single conversion i was wondering what are the best fluids to use. I currently am using the oem recommended fluids in the gearbox, diff and the engine (10w40). However i was wondering as the engine and gearbox are going to be under more stress should the rating of the oils be changed at all? Link to comment Share on other sites More sharing options...
Rich.2211 Posted May 2, 2014 Share Posted May 2, 2014 I'm using 10W50 engine oil to cope with increased oil temperatures as recommended by Opie Oils. Link to comment Share on other sites More sharing options...
David P Posted May 2, 2014 Share Posted May 2, 2014 One grade heavier than stock spec for an ageing and/or raised power engine, W50 gets my vote too. Link to comment Share on other sites More sharing options...
scott87 Posted May 10, 2014 Author Share Posted May 10, 2014 Brill thanks Also would it be worth fitting a cooler to my w58 to help that? Link to comment Share on other sites More sharing options...
garethr Posted May 10, 2014 Share Posted May 10, 2014 I wouldn't have thought a cooler would make much difference. It's the torque (and driving style?) that breaks the W58. There a reason that Toyota didn't use it on turbo engines (except the largely torque-free 1G-GTE). Link to comment Share on other sites More sharing options...
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