

| Subject: | Re: A/T changes hard - AT fluid? |
| From: | James |
| Date: | Wed, 4 Dec 2013 23:39:12 -0500 |
About AT fluid - what do people use? Ours is running on Mobil 1, as per Frank Condelli's advice, but one of my colleagues in the auto shop school at the College where I teach suggested to me the other day that, as VW originally specified Dexron III in their ATs, we might consider the current Dexron VI. Apparently it's all synthetic, like Mobil 1, but he says that in GM transmissions from the era of our Vanagons the Dexron VI shows considerable improvement over the Dexron III, especially in the cold and in very hot situations - and since it's meant for trannies that used Dexron III, it may be more specific to the needs of the AT than Mobil 1 (which in theory replaces Dexron III and Type F, even though those two fluids are not the same). I see Bob uses Redline - anybody else using that? Anyone tried Dexron VI? James Ottawa, ON '91 Westfalia Weekender > Date: Wed, 4 Dec 2013 10:03:41 -0700 > From: mtbiker62@GMAIL.COM > Subject: Re: A/T changes hard > To: vanagon@GERRY.VANAGON.COM > > This A/T is changing hard in the morning until it warms up. I don�t have > > a good idea what to do with it, if any, to have it back to good order. > > Anyone? > > Greetings to all in Christmas spirit. > > Zoltan > > My '91 did this when I got it. Once I changed the auto lube to Redline ATF > and the screen, it shifted completely differently (meaning that there was no > difference between cold weather start-up shifting vs warmed up shifting > no matter time of year). After that change, if shifted quickly and crisply > even in very cold weather (single digit temps) start-ups. > > Bob
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