gearbox oil
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Diver944
Active member
Swepco from www.berlyn-services.co.uk has had much positive feedback from 944 owners, and has quietened many a noisy gearbox. I think gearbox oil is one of the most neglected items that is part of regular maintanance. Officially it should be changed every 4 years, but as I know a gearbox rebuild is one of the most expensive jobs for our cars [
] and fairly common, I do mine every two years.
Remember to remove the filler plug first before draining the oil []. If your filler plug is seized you are suddenly very stuck with no oil in your gearbox.
] and fairly common, I do mine every two years.Remember to remove the filler plug first before draining the oil [
]. If your filler plug is seized you are suddenly very stuck with no oil in your gearbox.
I have just ordered Swepco 201 from Bert Gear At Berlyn Services and it should arrive tomorrow. Not sure on Grade etc, as I asked him to advise. There is an aticle here...
Paragon
This is the most comprehensive info I have found thus far. My gearbox is a right little horror until it is well warmed up, and if the state of the belt rollers is indicative of the maintenance skills of the previous owner I expect the oil is going to be in some state... There is another article here....
Paragon again
if you want to give yourself a migrane unravelling the mysteries of gearbox oil
Paragon
This is the most comprehensive info I have found thus far. My gearbox is a right little horror until it is well warmed up, and if the state of the belt rollers is indicative of the maintenance skills of the previous owner I expect the oil is going to be in some state... There is another article here....
Paragon again
if you want to give yourself a migrane unravelling the mysteries of gearbox oil
Not done it yet as last weekend I had to sit in a waiting room for three and a half hours having the windscreen replaced. And then had to find a coolant leak which turned out to be the heater control valve vacuum diaphram..... [] Red coolant all over the windscreen guys' workshop floor.... not the best senario.
] Red coolant all over the windscreen guys' workshop floor.... not the best senario.
Diver944
Active member
1st to 2nd in a 944 is certainly the least smooth of any other car that I have driven. I think this is becauise you have quite a lengthy linkage to the gearbox at the back and then there torque tube going forward to the engine where the clutch is.
Jon Mitchell www.9xx.co.uk sells an uprated gear linkage which is said to improve things
Jon Mitchell www.9xx.co.uk sells an uprated gear linkage which is said to improve things
Guest
New member
Hi Pete,
Ask the oilman at Opie Oils ring.
http://www.opieoils.co.uk/lubricants.htm
01209 215164
Speak to Simon or Guy.
I've recently replaced engine oil and gearbox/trans/rear diff oil on my 1988 928 S4 manual with Silkolene fully synthetic oils. Ring them and you'll get an informed chat and if you order it'll be a good price with delivery the next day.
Good luck - P.S. the oils are fantastic and don't do the old "Oh dear! Don't synthetics blow up your car?" - bit. That's the rubbish people like to perpetuate. It aint so.
Rich
Ask the oilman at Opie Oils ring.
http://www.opieoils.co.uk/lubricants.htm
01209 215164
Speak to Simon or Guy.
I've recently replaced engine oil and gearbox/trans/rear diff oil on my 1988 928 S4 manual with Silkolene fully synthetic oils. Ring them and you'll get an informed chat and if you order it'll be a good price with delivery the next day.
Good luck - P.S. the oils are fantastic and don't do the old "Oh dear! Don't synthetics blow up your car?" - bit. That's the rubbish people like to perpetuate. It aint so.
Rich
Guest
New member
Actually, it does have some basis for old motors. Deposits of crud build up on the seals with dino oil. Then you introduce synthetics which have better cleaning abilities, they clean out the deposits which were sealing oil leaks and you start to drip. And switching back to dyno oil won't help as the deposits are gone. So you need to replace the old seals which is a fair amount of work.
How often this actually happens is probably exaggerated but we are driving old cars and if it happens to anyone we are high on the target list.
I've been running synthetic since the car ('88 951S) was 2 years old so have never had the problem, but some friends that switched late in the game have.
I'd stick synthetic in the gear box without hesitation. The 15+ year old motor would be a totally different question if it has never run synthetic. You know how long it takes to get to the rear main crank seal? I've been there and done that on the clutch job and would kick myself in the butt for a week straight if I had to go back in there for just the seal.
My two cents.
Guest
New member
Like you say it's exagerated. There are no scientific tests that show the washing out of old deposits causing major leaks and damage. I do know that when mobil 1 first came out it damaged the gaskets and seels in engines but that was due to one of the additives that was subsequently replaced. I have contacted Porsche and they only recommend the use of semisynth or synthetic oil for all cars including the old ones.
I'll be honest and say I think this paranoia about synthetic is exactly that and more to the point, I believe that in some perverse way people like repeating it and all other things they hear people say - a bit like a religious chant that indicates to others and themselves that they are part of the clan and know the rituals that membership brings.
Again just MHO.
I'll be honest and say I think this paranoia about synthetic is exactly that and more to the point, I believe that in some perverse way people like repeating it and all other things they hear people say - a bit like a religious chant that indicates to others and themselves that they are part of the clan and know the rituals that membership brings.
Again just MHO.
random hero
New member
Typical as ive only got 1.5 litres in the garage !!
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