75-W90 Gearbox oil to GL-4 from Comma

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Hacksawbob
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by Hacksawbob »

bit of a rear whine from one to two, even with engine off
Whining is internal Gbox wear you mean with clutch pedal pressed surely? if you gearbox whines with the engine off then you have a daily mail reader in there! I dont think thicker viscosity will help, time for a rebuild. But I cant hurt to eek a bit of life out of it by changing the oil for fresh to the recomended spec.
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by xpress »

with pedal pressed. what could this mean?
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by Aidan »

if noise with clutch pedal depressed it's generally the release bearing, if noise with pedal released then generally it's the input side of the gearbox, ie input shaft and mainshaft and parts running on/driven by them, if noise when moving then pinion shaft/crown/differential or parts running on pinion shaft

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by lhd »

I noticed a difficulty in shifting after changing from 75-90 to 80-90, had been fine for about four years until I changed to the Fusch type from GSF, as soon as winter arrived the problem started.
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by xpress »

god knows what's in my box. will change it to semi synth 75 90 and see what happens. what do I need for the filler and drain holes, wish me luck on finding them.
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by HarryMann »

Hey, didn't you know God has a capital G :)
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by lhd »

xpress wrote:god knows what's in my box. will change it to semi synth 75 90 and see what happens. what do I need for the filler and drain holes, wish me luck on finding them.

Make sure you undo the filler before the drain. :wink:

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by HarryMann »

Make sure you undo the filler before the drain. :wink:

else you may regret the latter before the former!
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by bouldster »

My bus had GL4/5 semi syn in for 4 years /10 000miles and the diff and pinion were badly pitted and whining,so go for the classic spec stuff

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by clinning »

Hello, been reading the wiki and forums have a DG 1.9 looking to drain the old oil so looking for replacement, got the socket on order just need the oil

Have found these, they seem to fit what people say, can anyone confirm it's right.

http://www.ebay.co.uk/itm/271549625343" onclick="window.open(this.href);return false;

http://www.ebay.co.uk/itm/261555724294" onclick="window.open(this.href);return false;

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by Aidan »

the millers looks fine

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by California Dreamin »

Aidan wrote:the millers looks fine

What he says but given the choice... I would be buying a slightly thinner 75W 90 GL4 for better cold shifting....

Which I believe was the point the first poster was making.

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by California Dreamin »

Aidan wrote:the millers looks fine

What he says but given the choice... I would be buying a slightly thinner 75W 90 GL4 for better cold shifting....

Which I believe was the point the first poster was making.

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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by kit »

The Wilkinsons oil is now 80 90 Comma at £3.20 a litre would that be OK do you think?
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Re: 75-W90 Gearbox oil to GL-4 from Comma

Post by Aidan »

as long as it is GL4 that is fine that 80w/90 is the original weight spec

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