Thread: 85/ 140 gear oil sooo much better!.

Originally Posted by ATH

Wouldn't this indicate that a thicker oil would be better especially on long runs during a hot Summer?
AlanH.

No.

If it's still the OE/factory fill oil, it's a 75W-90 anyway, but a pretty good full synthetic 'special' from Castrol.

Originally Posted by Wortho

I usually put Penrite 80w/90 hypoid gear oil in the transfer and diffs, am i doing the right thing there or not?, It has started to whine a bit. Gearbox i usually put Penrite 75w/80 manual transmission oil, i give the old girl a pretty tough time offroad so usually change transmission oils every 10k and check them weekly. Is there anything i should be doing different?

You check them WEEKLY ??? Why, does it leak that badly ?


On oils I use Castrol Syntrans in my R380 and Syntrax in my LT230 ,
The r380 has a remote finned cooler about 600ml extra capacity and the LT230 had a rover canada sump, They both run as cool as a cucumber - (Im towing a Van full time now.) any Hypoid 85w 140 in the Sals and any diff oil in the front with some molybond & moreys mix in the CV's, Td5 runs HPR 5 full syn