Gearbox oil is GL4 really necessary

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Stirls
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Gearbox oil is GL4 really necessary

Post by Stirls »

All the manuals and specs call for GL4 gearbox oil but I have read that GL5 is now safe to use in our gearboxes as it has been upgraded, GL5 is a better oil apparently, anyone got any views on the subject please.
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itchyfeet
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Re: Gearbox oil is GL4 really necessary

Post by itchyfeet »

Yes GL4 is needed

from memory

or GL4/GL5 which complies with both apparently.

GL5 rated only has extra additives that will dissolve the yellow metals in your gearbox, modern gearbox parts are different metals or coated I think or something like that.

Aidan or one of the other Gearbox specialists will be along in a minute to give you the proper explanation but that's close enough
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itchyfeet
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Re: Gearbox oil is GL4 really necessary

Post by itchyfeet »

you read the Wiki of course :lol:

http://wiki.club8090.co.uk/index.php/Ge ... earbox_oil" onclick="window.open(this.href);return false;
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Stirls
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Re: Gearbox oil is GL4 really necessary

Post by Stirls »

I did look on wiki but must have missed it, I'll go with the Comma SX for now just needs a top up, Thanks.
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jebiga41
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Re: Gearbox oil is GL4 really necessary

Post by jebiga41 »

yes or GL4/5 unless you want bronze coloured oil with flakey bits in it :wink:
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Timburrows
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Re: Gearbox oil is GL4 really necessary

Post by Timburrows »

GL 5 is fine :ok just make sure Aidan or Vantopia have space in 6 months time :idea :rofl book your appointment NOW

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