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I was looking and I see a few different choices. Is there a better one for a 89 rc with 318 auto? I saw q-stae atf +3 and dexron mercron but I'm not sure which is best - Mike
 

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Is it an overdrive or not? I know with the overdrives you need the atf+3. Non overdrives w/lockup need it also, non overdrives non lockup can use dexron III or type F.
 

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are your paticular year you could probably get by with either. I seen Advance Auto parts has thier own brand of ATF+3 for less then $2 a qt now. You could just put that in there and not worry about. ATF+3 can go in older transmissions that used dextron III, but dextron III can't be put in newer transmissions that call for ATF +3
 

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Do not put dexron in your tranny!!! I made that mistake. I blew a tranny line and i lost tranny fluid. The closest gas station had only dexron, I put it in just to get me home. Well, the tranny acted like a big bag of sh*t for the next couple days. It didn't go away until I did a tranny flush/filter change. PLEASE ONLY USE ATF+3 or higher!
 

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RamUinWI said:
Do not put dexron in your tranny!!! I made that mistake. I blew a tranny line and i lost tranny fluid. The closest gas station had only dexron, I put it in just to get me home. Well, the tranny acted like a big bag of sh*t for the next couple days. It didn't go away until I did a tranny flush/filter change. PLEASE ONLY USE ATF+3 or higher!
using dexron most likely didnt cause that, mixing the 2 probably did. i use dexron in my 89 and 90, one without od, and one with, and neither have problems (although EVERYONE says my a518 should be dead 5 times over by now.) if in doubt though, go with atf.

Duane
 

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ive read that many times. i still know that dexron III in a 727 without a lockup converter is fine. type f is also fine. and despite what that site says, i have used it in my a518, and it has been used in it for 350k miles, and it too is fine. and again, if ur in doubt, go with ATF.

Duane
 

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i got a 318tbi, a500 o/d with a lockup. what should i use? im figurin the atf+3
 

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Hey i know on my 85 RC that it told me what to use in it right on the dipstick. Mine has a 904 and uses dextron!

Rodney
 
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