I recently put "all" Redline D4 ATF synthetic automatic transmission fluid in my 4eat. A year ago, the dealer thought a shuddering (intermittent) problem (and rough idle) was the AT. So, before recommending a new or rebuild AT, they did a AT fluid transfer, putting in all new Dexron (I had 1/2 Redline synthetic 1/2 Dexron at that time). I thought I heard it's best to have synthetic, so I did a transfer of all AT fluid to Redline synthetic.
I notice more slipping between gears. Is it better to have the slipperier fluid (less friction/wear), or does the increased lubrication and resultant slipping between gears cause MORE wear (or damage)?
THANKS for your input!
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Jim
1995 Laguna Blue SVX AWD L - 240K (daily driver) -
"ReBuILT" used engine at 236K miles (6/13)
2013 Veloster Red - Driver Now??Dropsprings [1/2" rear, 1" front] with Koni Strut Inserts> Magnaflow Exhaust System>
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20 Min MOD .. . (2011)
Valentine One Radar Detector with Remote Display - ucan'tseeme! 