The erratic automatic
Every time I brake at the lights the automatic transmission in my 1998 Mitsubishi Magna V6 disengages, then re-engages with a bit of a lurch. I have checked the transmission fluid and it is up to the right level, but it is a brown colour and has a slight burnt smell. I am wondering if it has overheated or if the coolant has somehow contaminated the fluid. I amplanning to do a complete fluid and filter change to fix it, but was a bit scared by the idea that there is crosscontamination by coolant, as my mechanic said. If he is right, am I looking at a complete transmission replacement? Would it be worth doing a coolant flush clean and replace as well?
James, email It would appear the fluid has been overheated, so I would be doing a full flush of the transmission, not just a fluid change. I wouldn’t bother about the coolant. PREMIUM GO I recently bought a Chrysler 300C with a 5.7-litre petrol V8, for which the dealer recommended premium unleaded. The handbook states that 91 RON is acceptable, but 95 is preferred. A friend has been running his on 91 with no ill-effects. What is correct?
Derrick Kershaw, email You can run it on the cheaper 91 octane without any deleterious effects but to get the best out of it you need to run it on the higher 95 octane premium, as the dealer has recommended. GEARINGDOWN I’m going on a caravan trip in my 2006 Toyota Hilux turbo diesel, towing a camper trailer weighing 1700kg. A friend has told me to stay in fourth gear and sit on 110km/h the whole way as such towing stuffs up fifth gear if you use it. He was told this but ignored it and, when he got back, fifth gear was noisy. Have you heard of this and should I stay in fourth?
You can use fifth gear when appropriate. Drive to the road conditions, so when it’s flat use fifth, but change down when you face a hill so the vehicle is not lugging in fifth gear. FULL AHEAD We are very pleased with our
Flushed: Amagna’s auto transmission fluid smells burnt, so it’s time to flush it