Transfer gearbox oil
- Thread starter Rob L
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jamesmartin
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any reasonable ep90 ep75w90 or ep80w90 trade oil from local motor factors
raywin
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Mine is filled with Comma SX75W-90 GLS semi synthetic, the semi and full synthetics are a bit lighter than the older mineral oils and should run cooler.
Great thank you
I'm being a total dullard here but which one of those is the thickest? I have a slight oil weep on mine so thinking the thicker the better!
jamesmartin
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Stock_90_TD5_SW
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I've been using Castrol Syntrax Limited Slip 75W140 in the diffs and the transfer box, but guess it's probably the same price..
I've just filled mine with comma oil they have a web site, pop your reg in and they specify which of there oil to use
www.commaoil.com
Regards Robert
neilly
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Once it gets warm , is all 90 not the same? So providing you get it hot and then the leakage will be the same no matter which grade of 90 max, whether single or multi you put in?
Cheers
neilly
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Which transfer box you putting that in Lynall ? I have the same issue, so maybe a good short term solution.
Cheers
LT230, its had news seals/new flanges and the fooker still leaked, thicker oil didnt stop (obviously) it but made it much better.
Also use it in my S2 gearbox/tfer box/diffs/steering box and steering relay, its doesnt stop the leaks but massively slows them down, main reason I changed it was I read in the S2 manual somewhere that for severe duties 85/140 is recommended and as I had gone from 50 bhp to over 100 I reckoend that was severe enough, then I just ended up using it in the rest of the car.
Gazbo
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Did you replace the intermediate shaft "o rings", that seems to be the worst place for leaks. And I found if the breather is obstructed then the internal pressure in the case will push oil out of every joint, no matter how thick the oil is.
neilly
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No I havent looked at the o rings and since it stopped being my main car it cant have covered 1500 miles in the last 3.7 years, so its pretty low on my to do list
