Gearbox drain plug

[JNW]

I'm replacing my 5-speed 1991 gearbox oil. Here's a photo of the magnetic drain plug.

Is this normal or bad?

[Choppski]

when was the oil last changed?

[JNW]

when was the oil last changed?

Don't know.

It had a recon engine fitted about 6000 miles ago. Might have been done then. Or not. It wasn't too hard to release the plug.

[California Dreamin]

Thats not unusual....especially as that could well be tens years worth. It's all very fine stuff, NO BIG BITS..
I would be using a 75W90 GL4/GL5 semi synthetic (as a multigrade this is a little thinner which improves cold shifting)
Takes about 4 litres (fill on the flat until it spills over)

Martin

[ghost123uk]

Thats not unusual....especially as that could well be tens years worth.

Or it could be 21 years worth too.

From what I have seen in real life and from others on here, that is fairly usual.

[Ian Hulley]

Nothing unusual there ... as Martin said check it for larger pieces but those 'filings' are to be expected. 75W90 GL4/GL5 semi synthetic is the way forward now.

Ian

[JNW]

Great, thanks guys.

I left it to drain overnight. Trying to get as much gumk out as possible. It was a thick brown metallic colour.
I had already bought Comma 80W90 on a previous recommendation. Will that be ok?

Quite tricky to get it in - used a length of soil pipe with a funnel in half at each end.

J

[California Dreamin]

[1_eyed_jim]

Quite tricky to get it in - used a length of soil pipe with a funnel in half at each end.

J

Try warming the bottle in hot water for a while it'll flow better

[Ian Hulley]

I had already bought Comma 80W90 on a previous recommendation. Will that be ok?

As long as it's GL4 NOT GL5.

Ian

[JNW]

Yep, it's GL4.

[Ian Hulley]

Yep, it's GL4.