My J type was shifting slow and sometimes not at all and it turned out to be a
sticky high pressure relief valve
was dragging in the bore. I swapped it out with a spare and has
workedB perfect with both 30 wt and 90 wt..
Jim g
----- Original Message -----
From: "Yellow04" <yellow04@tr4racer.com>
To: trmarty@hotmail.com
Cc: fot@autox.team.net
Sent: Saturday, May 11, 2013 3:20:25 PM
Subject: Re: [Fot] trans fluif
Before I ponied up for the billet bottom end, I ran an OD in my race car. I
tried a couple varieties of GL4 and 5, but never overcame the problem of the
OD engaging sluggishly and then not at all on a hard, hot run. I believe I was
frothing the oil at big rpm. I was about to put Redline in and be done with
it, but I called Moldex instead.
It was suggested to me to run non-detergent 30 weight oil in a street OD box,
and it works great. When I rebuilt the race prepped OD box this Spring B to
sell in the old yellow car, I went to Napa and bought the same cheap oil that
has served me well on the street, and ran a weekend at VIR. Shifted perfectly,
and the OD worked perfectly.
I change it every race weekend because that gives me the ability to take a
close look at the oil, giving me a good read on the health of the box. Redline
oil is way too expensive for that!
Sent from my Verizon Wireless smartphone
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