Dont need GM posi additive, if you are running syinthidic?
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Re: Dont need GM posi additive, if you are running syinthidic?
buy royal purple line of limited slip gear oil.The "synthetic" blend you refer to will work just fine as long as it specifies on the bottle it is for limited slip use
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From: haverhill MA
Car: 89 formula, 89 Cadillac Brougham
Engine: 355,HSR,patriot alum. heads,TFS cam
Transmission: 700r4, 2500 B&M stall, shift kit
Axle/Gears: 3.73 ten bolt, powertrax locker
Re: Dont need GM posi additive, if you are running syinthidic?
if it says "limited slip additive" or something to that effect on the bottle then you're all set. i know royal purple synthetic is safe.
Member
iTrader: (2)
Joined: Jan 2007
Posts: 197
Likes: 0
From: haverhill MA
Car: 89 formula, 89 Cadillac Brougham
Engine: 355,HSR,patriot alum. heads,TFS cam
Transmission: 700r4, 2500 B&M stall, shift kit
Axle/Gears: 3.73 ten bolt, powertrax locker
Re: Dont need GM posi additive, if you are running syinthidic?
fill it til it trickles out the fill hole
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