Transmission fluid
 

What Transmission Fluid are you using in your metric 200?
Brand? Synthetic? Weight? And Why? Thanks.
J.R. Haddad.

Re: Transmission fluid
 

I run Lucas Oil semi-synthetic fluid in my m200 trans. It's a great product and I've never had any problems with it. The Lucas trans fluid seems to protect the trans and converter as well, if not better than any other fluid out there.

The Lucas family also does a lot for sportsman drag racing so I like to support those that support us. Plus it isn't a super high priced product either!

Drew Whalen

Re: Transmission fluid
 

In the 200R4 trans we run Dex 6, most builders are recommending it today. It is also backwards compatible with other Dex fluids

Kevin

Re: Transmission fluid
 

The comments from Drew also reflect my experience. The Lucas semi-synthetic ATF has given excellent service for me in several different combinations.

In addition, my experience with Lucas motor oils and gear oils is also very good.

Re: Transmission fluid
 

The race transmission builders I have used all recommended Type F.

Re: Transmission fluid
 

Walmart

Re: Transmission fluid
 

Pretty much the cheapest Dextron I can find.

Re: Transmission fluid
 

Walmart Type F
$3.27 Quart

Re: Transmission fluid
 

Allison Trans Synd in my Remac Trans. Handles heat real well, the auto 1-2 is very consistant. Warm or cold

Re: Transmission fluid
 

I agree with post #6 #7 and #8. Unless it is something like a honda or a LATE model clutch to clutch unit, transmission fluid is not very specific.

Re: Transmission fluid
 

John Deere HyGard low/vis with a touch of F for color.

Re: Transmission fluid
 

I recommend Castrol TransMax (which is also marketed as Allison TransSynd) , or Redline D4 . These fluids are basically a Dextron equivalent.

One thing that I noticed is the synthetics seem to perform the same all day long, where the mineral based (non-synthetics) seem to be slower on the first run of the day.

The friction package built into Dextron oils compared to Ford type F is quite different. Dextron has a higher static coefficient of friction, then Ford type F, which basically means it holds the clutches without slipping, better then type F . If you run lower line pressures in the transmission, this could be plus !

Re: Transmission fluid
 

Type F doesn't have any friction modifiers, Ford took them out of the Type A in the mid 60's to cover up some design issues with the C4. I agree with you on the synthetics, they do seem to be more consistent between hot and cold and I run and recommend to my customers to run them. I like the Transynd type fluids because they are full synthetic, meet Dexron III friction properties and are a higher viscosity than some of the newer passenger car fluids. Check out TES 295 on Allison's website, it gives a full list of approved fluids that meet the same specs as Transynd.
The attached article explains some interesting facts about tranny fluids.

http://www.aftonchemical.com/Insight...ATFspreads.pdf

Jim Mantle V/SA 6632

Re: Transmission fluid
 

If you guys are running a Metric trans you must be looking for all the ET you can save? Why would you put a 30 weight trans fluid in it then such as the Lucas or normal off the shelf Petroleum Type F fluid? I think the Dex 5 and 6 stuff is less than 30 but more than 20 and it is a really good fluid but no Type F in it. Nothing is wrong with either of the others but from an ET standpoint you are giving some up.

20 weight, or less, gets used on huge HP cars that don't mind changing it often. Cars like the Challenger and COPO run our 20 weight all season without issue as do thousands of other racers. Our Super F is 20 weight and the Max duty is 30 weight and we have the best price available for a true 100% Synthetic, with full Type F friction modifiers. If nothing else find yourself a good 20 weight to try. In our Challenger, at MIR, in 90 deg weather, dumping out Castrol Type F and putting in our Super F 20 weight was .02 quicker. No reason other than its Thinner. Being synthetic it usually would take 5 runs back to back with normal Super F to get to 220 deg. After the same 5 runs with Super F, being synthetic it was 180.