88 t-5 trans fluid?
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: 88 t-5 trans fluid?
ATF was factory but lots of folks including a EX lead GM engineere says to use straight 30W oil [like he does]. ATF was done for MPG but is to thin but 80-90 is way to thick. Straigth 30W will flow well but offers better protection.
A good 30,000 miles and no complaints with it here........
A good 30,000 miles and no complaints with it here........
Joined: Feb 2001
Posts: 8,494
Likes: 411
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: 88 t-5 trans fluid?
I talked to Hanlon Motorsports 3 or 4 times during my T5 rebuild. Sure they sell Redline, and i realize the brand name doesn't necessarily make it better...
....but...he did say without a doubt that any brand synthetic dex/mercon was the way to go. Is that the ONLY way to go? Of course not. I've learned there isn't always one best answer, and everyone has an opinion, but I doubt Hanlon has fuel economy in mind.
....but...he did say without a doubt that any brand synthetic dex/mercon was the way to go. Is that the ONLY way to go? Of course not. I've learned there isn't always one best answer, and everyone has an opinion, but I doubt Hanlon has fuel economy in mind.
Supreme Member
iTrader: (7)
Joined: Jan 2009
Posts: 1,176
Likes: 4
From: Moneta, VA
Car: 88 GTA
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: BW 9-bolt 3.27 posi
Re: 88 t-5 trans fluid?
Bob Hanlon told me that if it is a WC transmission, using anything other than ATF will be bad for the blocker rings.
On NWC, he still recommends ATF, but you can use other lubricants without hurting the transmission.
On NWC, he still recommends ATF, but you can use other lubricants without hurting the transmission.
Thread
Thread Starter
Forum
Replies
Last Post
maroe624
Transmissions and Drivetrain
4
Apr 16, 2017 08:29 AM
