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Best ATF?

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Old Apr 2, 2008 | 12:55 PM
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Default Best ATF?
Whats the best make of transmission fluid..what would you go with im thinking castrol? not coastal
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Old Apr 2, 2008 | 01:11 PM
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I like Valvoline Maxlife. It has worked great for me in all my cars.
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Old Apr 2, 2008 | 01:33 PM
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Originally Posted by LT1-DAN
I like Valvoline Maxlife. It has worked great for me in all my cars.
+1 on the V.M.
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Old Apr 2, 2008 | 01:39 PM
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I'm happy with Royal Purple.
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Old Apr 2, 2008 | 01:44 PM
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+1 for royal purple the pricey purple fluid
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Old Apr 2, 2008 | 01:45 PM
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Royal Purple here, use it in Everything from my WS6, Bike, Grand Cherokee, 89 Turbo Grand Prix.

I even use the Engine oil and Diff fluid also. Hell I even use the Water Wetter in the rad on my bike!
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Old Apr 2, 2008 | 01:46 PM
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ive been using the castrol and it works fine.
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Old Apr 2, 2008 | 01:49 PM
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i just picked up some castrol..the trans builder told me to use mercon V..But isnt that for Ford vehicles
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Old Apr 2, 2008 | 01:54 PM
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DEX/MERC is recommended for most GM, Ford, Toyota and honda. It should tell you on the bottle.
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Old Apr 2, 2008 | 01:59 PM
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it was sayin it was for fords. mercon 6 is for GM's i guess..5 is for fords??? idk im confused
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Old Apr 2, 2008 | 02:09 PM
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You can use it if it is Mercon V.
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Old Apr 2, 2008 | 02:10 PM
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GM is Dextron.
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Old Apr 2, 2008 | 02:49 PM
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If you have been running DIII I would recomend you stick with it. The later versions contain some synthetic and are more slippery. When I swapped mine out I immediately felt softer shifts from the new formula. 49K on car and tranny at the time. If your a new car with it from the factory or run it from day one in a rebuild I would think the new is better. I don't recommend swapping over though.
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Old Apr 2, 2008 | 02:50 PM
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so i can use mercon V?? LOL
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Old Apr 2, 2008 | 02:51 PM
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Originally Posted by SOMbitch
If you have been running DIII I would recomend you stick with it. The later versions contain some synthetic and are more slippery. When I swapped mine out I immediately felt softer shifts from the new formula. 49K on car and tranny at the time. If your a new car with it from the factory or run it from day one in a rebuild I would think the new is better. I don't recommend swapping over though.
The tranny was just re-done..thats what the builder said to use in it....
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Old Apr 2, 2008 | 02:54 PM
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Yes!! but why not just get the DEXTRON-3?
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Old Apr 2, 2008 | 02:55 PM
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yuo can use mercon 5 but it's moer expensive I believe. mercon 3 should work just fine. "ATF" is ford's fluid i believe
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Old Apr 2, 2008 | 02:55 PM
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Originally Posted by z28_YOU_HO
i just picked up some castrol..the trans builder told me to use mercon V..But isnt that for Ford vehicles
Mercon V is the newer specification for Mercon - Ford has been using Mercon V
in their vehicles for 8+ years.

You should be using a Dexron III. I've had both my tranny (FLT) and T.C (Yank)
folks tell me to use Dexron III. GM began factory-filling Dexron VI in April 2005.
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Old Apr 2, 2008 | 03:01 PM
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Originally Posted by GregWS6&z28
yuo can use mercon 5 but it's moer expensive I believe. mercon 3 should work just fine. "ATF" is ford's fluid i believe
ATF=Automatic Transmission Fluid.
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Old Apr 2, 2008 | 03:06 PM
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Originally Posted by z28_YOU_HO
The tranny was just re-done..thats what the builder said to use in it....
thats what he told me to use so thats what i bought.. i just wanted to make sure i dont wanna have trans problems again..should i return it for the DEXTRON 3?
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