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GQ diff oils
Posted: Fri Dec 16, 2005 6:38 pm
by chops
workshop manual recommends hypoid 80W90 for my front and rear diffs (rear is locker)
is it worth changing the oil in both my diffs to 140?
I was told it'd be a good idea, especially if the car will cop a lot of harsh driving (and lets face it, it will
)
anyone out there done this and can recommend it too?
pros and cons to doing it?
Looking for some decent input, as the whole 4x4 thing is new to me.
Cheers,
Brian.
Posted: Fri Dec 16, 2005 7:20 pm
by MyGQ
Most people i know who run Lockers use LSD oils in the diffs
The thicker oil will just make the diffs harder to turn when colder that should be the only disadvantage. dunno if it will wear them down quicker or not
Posted: Fri Dec 16, 2005 8:19 pm
by fnqcairns
140 will use more fuel than a 90 and may not protect it any better than another brand of 90 would have.
If you do decide to go 140 consider this one Castrol SAF-XA 75w-140. This is about as good as they come, you could thrash it for 60k and probably still be protected but thats not advisable, also the 75w denotes easy cold start lubrication.
The price will scare you, it did me at $25 per L, now if they only made it in a 75w-90 as well, I like my economy.
cheers
Posted: Fri Dec 16, 2005 10:21 pm
by MyGQ
I use Catrol LSX90 in my rear and 80W90 in the front like my manual states
the 75W90 was used in my Gearbox.
Posted: Sat Dec 17, 2005 6:10 am
by Wotto
I use a lubrimaxx ls 90 in the rear. It works fine...still limos up well. i have heard that the 140 is a bit heavy for a sydney climate unless you drive a truck
Posted: Sat Dec 17, 2005 10:03 am
by gqswb
I would love to change the oil in the rear of my GQ but the fill plug is way way waaaaayyyyyyyyyy!! too tight I have tried breaker bars rattle guns heaps of Rost off looks like I will have to fill via breather plug. How many liters in the rear of a GQ SWB 4.11 LSD?
Posted: Sat Dec 17, 2005 12:02 pm
by gqswb
found it 2.1 L Changed oil with LSX90 all good ie; locks both wheels now :-)
Posted: Sun Dec 18, 2005 3:39 pm
by hottiemonster
i use penrite limslip 85W-140, never had a problem with it. (GQ SWB 4.6s ARB's)
Posted: Mon Dec 19, 2005 10:38 am
by Area54
hottiemonster wrote:i use penrite limslip 85W-140, never had a problem with it. (GQ LWB 4.1s ARB's)
Same.
Posted: Wed Dec 21, 2005 7:27 am
by rOd
Area54 wrote:hottiemonster wrote:i use penrite limslip 85W-140, never had a problem with it. (GQ LWB 4.1s ARB's)
Same.
Me three.