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Old 10-02-2010, 08:01 PM   #1
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What kind of Trans fluid should i use?

I'm thinkin about changing my trans fluid and filter. What kind should I use. I've got an 03 jeep sahara with and automatic.

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Old 10-02-2010, 08:12 PM   #2
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Royal Purple synchromax

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Old 10-02-2010, 11:59 PM   #3
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Quote:
Originally Posted by Kempton View Post
I'm thinkin about changing my trans fluid and filter. What kind should I use. I've got an 03 jeep sahara with and automatic.
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Originally Posted by p1zzaman View Post
Royal Purple synchromax
Synchromax is for manual transmissions. For '03 automatic I think you need atf+4, but I'm not positive. I'll let someone else make a more specific recommendation.
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Old 10-03-2010, 12:08 AM   #4
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Definetly use ATF+4 in the auto
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Old 10-03-2010, 12:13 AM   #5
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Yeah it seems to hesitate some times in 1st and 2nd gear. Thought it might be time for a flush and filter
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Old 10-03-2010, 09:23 AM   #6
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I use the fully synthetic Valvoline ATF+4 and it works great.
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Old 10-03-2010, 11:45 AM   #7
Knows a couple things...

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Yep, be sure to ONLY use ATF+4 in your '03 automatic which is the 42RLE 4-speed. Other ATFs like Mercon will only cause major problems.

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Royal Purple synchromax
That is only for manual transmissions.
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Old 10-03-2010, 12:30 PM   #8
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That is only for manual transmissions.
My bad missed the auto.... sorry
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Old 10-03-2010, 08:36 PM   #9
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I'd never use any oil with food coloring in it in anything - a cheap gimmick.

When you have an inferior product that won't sell, paint it a bright color and call it "Hi Performance," kids will buy it. I think that's JC Whitney's mantra.
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Old 10-03-2010, 08:45 PM   #10
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In the past,I have had only bad experiences with changing automatic trans fluid and filter.4 times I did it,and all 4 times the tranny took a dump shortly after!I had an old mechanic tell me to only change the filter,and not the fluid,unless you start from zero and change the fluid and filter every so often.Apparently some magic happens within your tranny when it has lots of miles and old fluid!

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