Hi all
I’ve just changed the gearbox oil on my 2009 NC 1.8. I’ve used the Mobil as in the post subject line. It had a very odd and pretty unpleasant smell. Has anyone else noticed this? I bought the oil on Ebay and it was in sealed containers and they all had the same smell.
Ian
^^^ Gear oil never smells very good new and especially old (used) oil.
Not being a connoisseur, I can’t speak for the bouquet of that particular bottling, but gear oil is known for smelling bad, sulphur I think.
Thanks for the fast replies and reassurance guys. I’ll go ahead and change the differential oil now.
Cheers.
Ian
It is a GL5 oil which means it has an additive in it to cover the high surface pressure of a bevel gear system basically a differential.
As has been said above that means it has a sulphate added for this purpose which gives a not very nice smell, most GL4 gear oils smell a bit better.
It can also be used in Mazda gearboxes but most owners of cars with a six speed box have found that Castrol Syntrans Multivehicle 75W/90 or Redline MT90 performs better with regard to gear changing at low temperatures.
Mine is a 5 speed. Not sure if that makes a difference. Had a quick drive in it and gearbox seems ok. Time will tell.
Thanks for the info’ though.
Ian
Sounds good just enjoy the car!