andy666 wrote:The 75w140 oil won't thin out as much when hot and will handle a higher load. It won't do any damage to run it in a hilux diff with a locker, it will probably just be over kill. 85w140 is the oil normally run in the diffs of prime movers towing 8ton of trailers behind them.
the 75w90 (or similar) would fine in the hilux diffs and is what I would use myself if I had a locker.
Skog07 wrote:Grab this link to explain thing easier..![]()
http://www.upmpg.com/tech_articles/motoroil_viscosity/
I agree with andy666. 80W -90 should be fine an EP rating, should also hold its viscosity value out to 180 degree C.
I also seem to recall the LSD oil in has detergent/ release additives to aid in the operation of the clutch packs in the LSD unit itself. Unless the additive itself interferes with the seals on the locker? It should also be fine to use.?
Are ARB specing a higher grade of oil to alleviate the problem of leaking seals and oil thinning out to much??
Cheers
Sogo
Cheers for the link mate. Im nt sure the reasoning behind arbs suggestion of oil grade. Could verry well be seal issues. In regards to lsd gear oil additives, im pretty sure installing a locker eliminates the lsd and turns it into just an open diff. I think too thats y they pushed the point of Not using an lsd oil. Additives may foul the seals as u said. Cheers
SKog
tulula wrote:andy666 wrote:The 75w140 oil won't thin out as much when hot and will handle a higher load. It won't do any damage to run it in a hilux diff with a locker, it will probably just be over kill. 85w140 is the oil normally run in the diffs of prime movers towing 8ton of trailers behind them.
the 75w90 (or similar) would fine in the hilux diffs and is what I would use myself if I had a locker.
Andy666
Would this 75w140 rating in ur opinion be more benificial if running 4.88 gears in the diff. Would a higher ratio gearset result in a greater load bearing inside the diff? That coupled with a higher rotational velocity center? I only ask as u seem to kno what ur talking about. Cheers
10 luxxxx wrote:Sittn on 38.5 that just sounds cool.
Ciboats wrote:Hi guys
Here is a question. Ive also changed all oils recently but had a hoist so a bit easier. I also extended my breathers as well.
Being the dodgie bugger that likes to modify am i crazy to consider a resoviour to fill front diff oil.
E.g.Flexible braided hose to firewall then solid up firewall to fill point. My question would be centre diff movement being not enough to bother a flexible hose. Its definitely well protected.
Any thoughts
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