Having spoken to someone who is supposed to be in the know I am told that gear box and transfer box oil doesn't need changing, it just needs topping up. He tells me that if I were to drain the oil then compare it to the new oil I would be unable to tell the difference between the two. Now this goes completely against the grain for me. Surely any oil that takes a real battering for thousands of miles has to lose its effectiveness.
I have a 300Tdi 1995 model and I have had it for the past 30,000 miles and in the time I've had it I have never changed the oil in either box. I think I spotted a thread on this forum that stated the oils in both boxes should be changed every 25,000 miles. Can anyone out there put me right on what should or should not be done.
I should mention that I do tow on a regular basis loads up to 3 tons so the car does work hard and she has done 151,000 miles.
Any input will be very welcome. Thanks.
I have a 300Tdi 1995 model and I have had it for the past 30,000 miles and in the time I've had it I have never changed the oil in either box. I think I spotted a thread on this forum that stated the oils in both boxes should be changed every 25,000 miles. Can anyone out there put me right on what should or should not be done.
I should mention that I do tow on a regular basis loads up to 3 tons so the car does work hard and she has done 151,000 miles.
Any input will be very welcome. Thanks.