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Old January 17th, 2013, 06:49 AM   #301
knaffie
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Quote:
Originally Posted by wadey View Post
Thanks,

So is that a p style pump then? Or a tc? I Googled, but it was no help, but being gm I'd assume its a p pump. Anyways the only reason I ask is because I have a p style pump (attached reservoir) and Saginaw box with a Derale cooler (12" dual pass) and I over heat and cook pumps constantly. So I have to ask is there any kind of special fluid you are running or tricks to make it last?
I went through 6 different p-pumps from PSC on my ZR2. I also had a huge cooler and a gauge. The fluid temperature rarely went over 160 degrees. Everything was done right as far a plumbing and components. I never did figure out why those stupid pumps kept going bad. Glad its somebody else's problem now.

Howe will tell you that genuine GM fluid is the best. About $12/quart at the dealer. Many people have had very good luck with Amsoil Tractor Hydraulic Transmission Oil. Seriously. I had very bad luck with Royal Purple fluid.
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