running with low gearbox oil - Nsar
My car has been making a scraping noise when starting from cold ever since I had it serviced at a main dealer about 1 month/1500miles ago. Took it to another main dealer to have it looked at under warranty (I was unhappy with the service I got at the first dealer). It turns out it was low on on gearbox oil by about a litre.

Any thoughts on whether this might have caused lasting damage? I will write to the dealer that did the original service to record my disquiet so that should problems arise in the future a record exists.

running with low gearbox oil - Aprilia
Don't know what the car is - but most gearboxes hold around 2-3 litre - so you would be well down on oil. Box is splash-lubed so a low level can have a significant effect. I would be worried.
running with low gearbox oil - Altea Ego
If the scraping noise is now cured with the correct level of oil, then it indicates damage was being done when it was low!
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TourVanMan TM < Ex RF >
running with low gearbox oil - L'escargot
I thought that the gearbox oil of front-engined cars was the same as that which lubricates the engine. I didn't realise that gearboxes had their own oil. Admittedly it's yonks since I did any car servicing so I'm probably out of touch with these things.
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L\'escargot.
running with low gearbox oil - mss1tw
I thought that the gearbox oil of front-engined cars was the same as that which
lubricates the engine. I didn't realise that gearboxes had their own oil. Admittedly it's yonks
since I did any car servicing so I'm probably out of touch with these things.


I thought only the Mini did this? All my FE, FWD cars have had seperate gearbox oil
running with low gearbox oil - local yokel
Did the servicing dealer change the gearbox oil? If not, then where has the 1l of oil gone?
running with low gearbox oil - GregSwain
I thought only the Mini did this? All my FE FWD cars have had seperate
gearbox oil


Some old Peugeots did this as well, but anything post-1990 will have its own gearbox oil - usually much more viscous than engine oil (Gear oil usually 75w80 or similar, engine oil usually 10w40).
running with low gearbox oil - nortones2
Gear oil has its own viscosity indicators: different scale to engine oil, but virtually the same thickness:) www.experimentalhelo.com/eh_OilViscosity.htm Actual measure is in centistokes: could even be less viscous than your engine oil.
running with low gearbox oil - GregSwain
Well I've learnt something today! Thanks nortones2! :-)
running with low gearbox oil - Collos25
I hope it is not a renault 6 speed box or vehicles that use this box because if you fill it up it will ruin the box,with a lot of boxes now the oil entry point is not the fill up marker you must only put the amount in that is listed in the spec.
running with low gearbox oil - Nsar
It's a Subaru Legacy - who makes their boxes?
running with low gearbox oil - Aprilia
Subaru make their own manual 'boxes. The level is not difficult to check. I would get it document that it had not been properly inspected and had run with low oil for 1500 miles.
running with low gearbox oil - Nsar
It's an auto if that makes a difference.
I've jost posted a letter explaining what has happened and asking for aknowledgement of receipt to the dealer and cc'd it to Subaru HQ.

running with low gearbox oil - Aprilia
Yes, being an auto makes a big difference. A Subaru auto holds about 9-10 litres, so being 1 litre down is much less significant. Also the oil is pumped around in an auto, so there is little chance of oil starvation with only 1 litre down.

The indicated ATF level varies quite a bit with temperature and should be checked using a particular proceedure. Basically you need to drive the car for a lenghty period (at least half-hour). Pull up on level ground and then move the selector slowly through all positions a couple of times. Leave it in P and with engine running carefully withdraw and clean the dipstick. Then dip it for a moment and read the level off the 'HOT' side of the dipstick.
A lot of autos are not checked properly and I see a lot with the wrong level. Some people check them with the engine off (pump not running) which means they end up massively underfilled and the box is damaged.
running with low gearbox oil - Nsar
Thanks for that info, it puts my mind at rest a lot more. The car was driving OK throughout and the sound has now gone so fingers crossed no damage was done.

 

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