You should change your transmission fluid every 30,000 miles or so especially if you drive in stop and go conditions.
The Dexron III is what you want to use and the Dexron III/Saturn is no different, probably just what Saturn does when they sell Dexron at dealerships. As for the Dexron VI you cannot use it and it will cause problems. The Dexron III is a good fluid and you are changin at what some would consider and early interval, although I don't as automatic transmisssiioon repair is very costly and the price of a fluid change every 30,000 is nothing compared to $2000.00 or more all at once. If you continue to maintain your car with these types of intervals for ALL the fluids, Anti-Freeze is a big engine killer do it every 2 years, your car will get 200,000 miles before it gives up and needs to be replaced or have major service.
You can use synthetics on the engine oil and I highly reccomend it. However you should use an oil filter made to work with synthetics. Also, don't go way over the 3000 mile oil change interval just because you use synthetic. If you are in stop and go conditions in polluted area your engine will still get the oil dirty and contaminate it and even good sythetic oill can't work well when heavily contaminated. You kind of have to start looking at the oil at 3000 miles and see how dirty it is. Change it when it starts to look dirty and also clean your oil pan very well so when you put your oil in a container you can look in the bottom of the oil drain pan and inspect for small particles of metal. You ahve to get under light or sun light to see them and they are an indicator of engine condition. None means a very healthy engine. Silver colored particles means you are heading towards needing a rebuild. Then finally a brass or copper colored metal particle means you are in need of a rebuild within the near future.
I am always glad to see someone who understnads, ""$10 in maintainence saves $2000.00 in repairs". It is a very true statement.
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Wednesday, October 31st, 2012 AT 6:03 PM