Hi
I have a VW 1800i Rewaco trike (2006), I was very lucky to find this genuine 2k mile trike and over the winter I have been going through it from top to bottom as it had been stood for a number of years. Anyway I got to changing the transmission oil and the exhaust collector box and truck pipes make it impossible to get to the gearbox oil drain screw without removing a ton of stuff which I would like to avoid.
I have used a vacuum pump to take out as much hypoid oil as possible, jacked up the rear of the trike as high as possible to move the oil closer to the fill hole which I was using to pump out the old oil. I have managed to get 2ltr of the 2.5ltrs of oil out of the gearbox, if I was to fill with new oil will this be OK? Just can't get all the old oil out..... Old oil looks in good shape only done 2k miles but has been in for 10 years.
thanks and sorry for the European measurements but not sure of the US Equivalent.
thank you