I opened up my tranny and changed all the sensors and screen now i need to know how much fluid to top it off its bone dry and the dex vi is 7.99 a quart i hope not a fortune

DEX VI is around 3.50 per quart at Wal-Mart. They have a hard time keeping it in stock at that price, so I often buy a few quarts whenever I am at Wally World and keep it in my garage for when I need it.

I think you will need to have at least 8 quarts, depends how much was drained from torque converter. Always best to put some in and then measure, if you over fill you will be siphoning the excess out.

What Guns said: it depends on how much you get out of the rest of the transmission. A pan drop on the 4T60 family of transmissions will instantly drop about 7.5 quarts. A complete transaxle disassembly and rebuild can take up to 13 quarts.

Realistically, budget for eight quarts and you'll be good.

Why use Dex IV though? Just go with the standard Dex III that it was built with.

GM states " DEX VI lessens parasitic drag in the transmission", resulting in less wear, improved mpg and smoother shifting.

In my case, DEXRON VI has eliminated low speed transmission chatter while turning on two GM AWD vehicles, thus preventing the need of rebuilding the trans and transfer case which occurs as a result of trans chatter. On my Bonny, thought the tranny was going to bust up into pieces at 90k miles. I installed a shift kit and upgraded to DEC VI, and the trans had no further issues. Trans now has 177k miles. I credit the DEX VI for allowing the tranny to come back from its death bed, give me 87k more miles, and still running solid.

DEX VI has saved me thousands of dollars and prevented a lot of headaches.

A few more comments DEX VI:

GM claims that Dexron-VI delivers more than twice the durability and stability in friction tests than do existing fluids. Although the company is still gathering data, it expects this to lead to a drain interval extension of roughly the same order.

“The result [of the effort] is a new fluid that significantly outperforms existing fluids in every aspect,” said Roy Fewkes, driveline fluids group leader for GM Powertrain. “In fact, we have had to significantly extend the length of our durability tests to fully test the fluid’* capability.”

“In every parameter, this is a significant improvement over fluids that are already on the market,”.

Meh.

I just rolled 100k not too long ago. Did a pan service on the Bonne with a new filter. It got filled back up with Dex III, as Dex VI was not in enough supply at the parts store and I do not shop at Wal-Mart.

Nick,

Changing the fluid is the key, especially with our trans.

One note on DEX III fluid, it is no longer licensed. Which means anyone can put any formula they want into a container and call it DEX III. IMO, I would only purchase a name brand DEX III for this reason. I would not, under any circumstance purchase a private label DEX III such as a AutoZone or Advance Auto brand.

AutoZOne for example is controlled by a guy named Eddie Lampert. He is all about one thing and one thing only, short term profits. Anything private label at AutoZone is always a exposure, and I am sure only one thing matters, lowest bidder. With no license requirment for DEX III- who knows what one is actually getting, I can bet one thing, one is not getting more than they are paying for.

It was either Peak or Valvoline ATF that I bought. I don't buy private label fluids, and I ESPECIALLY don't buy anything from Auto Zone if I can avoid it.

I'm getting ready to do a pan drop and replace the filter on a 2005 lesabre. when cold it takes a little time to go into rev. it has 187k and itcalls for dex III (h) is dex VI a better option ?