DAZ Posted December 12, 2002 Share Posted December 12, 2002 Hi there 1st of all have done a search,looking at renewing my diff oil just bought the megablade and for my piece of mind just renewing oil levels. Went to halfords toget some EP80/90 and the bloke was going on about it being to thick and try Castrol Syntax i think it was called,he kept quoting sierra diffs use this.Is thicker oil used because of the extra abuse the diffs get when fitted in kit cars or is this not an issue !!! just need a little advice please. DAZ Quote Link to comment Share on other sites More sharing options...
Blatman Posted December 12, 2002 Share Posted December 12, 2002 If it's a boggo Sierra diff with (or without) either the viscous or ATB type LSD, then EP80-90 will be fine. If it's a plate type LSD, you'll need proper LSD oil, which Halfords may not sell. Or ask The Fluke boys for some of their funky Red Line oils.........not cheap, but the best.......... Quote Link to comment Share on other sites More sharing options...
Carl Posted December 12, 2002 Share Posted December 12, 2002 Daz, I believe some BEC's using a non LSD run with a slightly thinner oil to reduce losses. The lack of torque and light weight allow this with no probs and apparently it makes a resonable differance. I wouldn't take my word though, best check on a BEC list. Carl Quote Link to comment Share on other sites More sharing options...
moomin Posted December 12, 2002 Share Posted December 12, 2002 Daz, I run RedLine SuperLightWeight Shockproof in mine (Freelander ATB LSD). If you are on the Yahoo BEC group then search for posts from Gavin Scott, he is resident oil guru. The RedLine stuff is not the cheapest, but arguably the best - not least because it looks like runny custard! It's quite noisy, but that's not really a problem in a BEC. Moomin Quote Link to comment Share on other sites More sharing options...
DAZ Posted December 13, 2002 Author Share Posted December 13, 2002 Sorry,didn't give enough information it's a factory fitted 3.36 LSD, i presume this will be a boggo sierra diff if so my question has been answered. Thanks DAZ Quote Link to comment Share on other sites More sharing options...
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