I Don't Have An Onwer's Manual And..

02bbcummins · January 1, 2011

I need to know what type of atf to put in my truck. I'm pulling a trailer accross country and the hills in Tennesse are kicking my trucks butt and i noticed i need to add a lil bit. When I was reading the penzoil jug it said do not use in 2005 and newer GM vehicles but it was dexron.. and of course when I bought my truck from a used car dealer I didnt think to look for the manual. can anyone help. Id like to find out by the morning. Im gonna hit the road around 7 so I will check back before then. Thanx guys... by the way sorry i didnt say it earlier, i have an 06 1500 crew cab 4x4 auto.

gmtech4 · January 1, 2011

dex 3 ,all good wtf is penzoil talking about ?

fill it full cold on a level surface ..cold and then driver mciver ,,, after driving awhile it should be full hot level ,

txab · January 1, 2011

You can download a copy of your manual here.

Follow the instructions.

Z45 · January 1, 2011

I need to know what type of atf to put in my truck. I'm pulling a trailer accross country and the hills in Tennesse are kicking my trucks butt and i noticed i need to add a lil bit. When I was reading the penzoil jug it said do not use in 2005 and newer GM vehicles but it was dexron.. and of course when I bought my truck from a used car dealer I didnt think to look for the manual. can anyone help. Id like to find out by the morning. Im gonna hit the road around 7 so I will check back before then. Thanx guys... by the way sorry i didnt say it earlier, i have an 06 1500 crew cab 4x4 auto.

That's because you were looking at a jug of Dexron III fluid, you want Dexron VI.

Buy a fluid that says, meets Dexron VI spec's. Dexron VI is backward compatible and the latest and greatest iteration of Dexron ATF

During early 2005 General Motors released a newly developed automatic transmission fluid (ATF) for the factory fill of all GM Powertrain stepped gear automatic transmissions. The new fluid provides significantly improved performance in terms of friction durability, viscosity stability, aeration and foam control and oxidation resistance. In addition, the fluid has the potential to enable improved fuel economy and extended drain intervals. Since the performance of the new fluid far exceeded that of the DEXRON®-III service-fill fluids available at the time it became necessary to upgrade the DEXRON® service-fill specification in order to ensure that similar fluids were available in the market for service situations. This latest upgrade to the service- fill specification is designated DEXRON®-VI.

Since General Motors introduced the first ATF service-fill specification in 1949 it has been periodically necessary to upgrade the specification. This upgrading process ensures that available service fill fluids are of an appropriate quality for use in transmissions that have been designed around the factory fill fluid performance. It should be noted that, as with previous upgrades, DEXRON®-VI fluids are designed to be backward compatible with earlier transmission hardware. More importantly, earlier type fluids are not forward compatible with transmission hardware that was designed to use DEXRON®-VI fluid, i.e. DEXRON®-III is not compatible with the most recently designed transmissions, and the use of these earlier type fluids could result in transmission damage. All current calibrations and certification tests are now conducted with DEXRON®-VI ATF. DEXRON®-III fluids should not be used for these applications where the owners manual recommends the use of DEXRON®-VI. GM does not license or support obsolete ATF specifications or the use of fluids that are being marketed against cancelled specifications.

All DEXRON®-III licenses expire at the end of 2006 and will not be renewed. Beyond that date GM will only support the use of DEXRON®-VI fluids for use in Hydra-Matic transmissions. Fluids sold in the market after that date bearing claims such as “suitable for use in DEXRON®-III applications” or similar wording should be avoided. DEXRON®-VI licensed fluids are fully backward compatible and can be used in all applications covered by earlier GM ATF specifications.