Most GM products, including the 2003 Trailblazer, take Dexron III Transmission Fluid. However, it is always a good idea to consult the owner or maintenance manual to be certain.
GM tends to recommend 5W-30 oil.
The best transmission oil to use in any Honda vehicle is the Honda brand. This transmission oil is create to supplement Honda's design and is proven to make the components last.
Dextron III
I use it on my 06 trailblazer I6 4.2
Automatic transmission oil is basically hydraulic oil for use in pumps. It is NOT recommended for use in any manual style transmission. All automatic transmissions in ATVs are a CVT type, and use no fluids. You should buy the proper gear oil for your ATV transmission as instructed in the owners manual.
Transmission: 15W50
Use a dedicated transmission oil from Honda, either for manuals or for automatics.
Remove the transmission dipstick and read it, it will tell what is the correct fluid to use.
Sorry, there is no real transmission oil. The clutch, transmission, stator, all operate with the engine oil. Therefor, it is best to use the oil from the dealer, and change it and the filter at 5,000 kms, or 3,000 miles.
You should have 7 quarts on hand for the oil change. You may use 6 1/2. www.trailvoy.com
5w-30 dino oil or synthetic. Follow the Oil Life Management system on the truck as described in the manual. www.trailvoy.com Trailblazer enthusiasts forum!
what type of oil should i use in transmission 240z 4 speed