So I'm getting the GTA out to drive
Thread Starter
Supreme Member
Joined: May 2004
Posts: 2,924
Likes: 1
From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
So I'm getting the GTA out to drive
since I blew a head gasket in the '98 the other night, so it's going to be down for a while. I figured "I need to change the oil since the car has sat since '08". I pull the oil plug and it looks like 90w gear oil coming out, actually thicker than that. This was Castrol Syntec oil that was in the car and it looked like molassas coming out. Has anyone seen this happen before with synthetic oil? This motor has less than 5k miles on it since I rebuilt it. My uncle who used to work for Cummings diesel and a state DOT mechanic for years gave me some suggestions to get it thinned out enough to get the oil out so wish me luck with it.
Now I have to go buy some regular oil to put in it before I throw the Royal Purple in it
Now I have to go buy some regular oil to put in it before I throw the Royal Purple in it
Thread Starter
Supreme Member
Joined: May 2004
Posts: 2,924
Likes: 1
From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: So I'm getting the GTA out to drive
Well, looks like the trick worked. Let the kerosene sit overnight, pulled the drain plug this morning and let it sit while my daughter had softball practice. Came back, put the plug in, the oil filter on filled it up with 5 quarts of standard oil and she's holding 40psi at idle. Going to drive it a week, change the oil again, drive it another week then put the royal purple in it and call it good.
Supreme Member
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: So I'm getting the GTA out to drive
Hmm I run the German Castrol too and I have noticed that its VERY thick every spring after storage. I keep in the garage at home and drive it to the shop for the spring freshen up/oil change etc. I had a PCV delete with a filter on there so I chalked it up to condensation absorbing over the winter but? 
Supreme Member
iTrader: (2)
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: So I'm getting the GTA out to drive
Castrol regular oil is great, the synthetic not so much, Mobil 1 is the way to go.
Thread Starter
Supreme Member
Joined: May 2004
Posts: 2,924
Likes: 1
From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: So I'm getting the GTA out to drive
Well for the cost difference between Mobil 1 and Royal Purple I think i'll stick with RP
Supreme Member
iTrader: (2)
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: So I'm getting the GTA out to drive
Royal purple breaks down too damn fast, no thanks.
Trending Topics
Supreme Member
iTrader: (1)
Joined: Nov 2010
Posts: 1,062
Likes: 1
From: Arizona
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: So I'm getting the GTA out to drive
I use Castrol GTX also, but I have to ask this question because it is in all the forums.
What does GTA stand for? I looked on line and all I Could find was grand theft auto..LOL I know it will be something I should know but Iam tired of guessing...
What does GTA stand for? I looked on line and all I Could find was grand theft auto..LOL I know it will be something I should know but Iam tired of guessing...
Supreme Member
iTrader: (1)
Joined: Nov 2010
Posts: 1,062
Likes: 1
From: Arizona
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: So I'm getting the GTA out to drive
Ok its a really hot car..lol
https://www.thirdgen.org/tech/images...AMsting_sm.jpg
https://www.thirdgen.org/tech/images...AMsting_sm.jpg
Senior Member
iTrader: (3)
Joined: Jan 2010
Posts: 527
Likes: 1
From: Illinois
Car: 89 GTA
Engine: 5.7 TPI L98
Transmission: 700R4 w/ Stage 2 shift kit & stall
Thread
Thread Starter
Forum
Replies
Last Post
The_Phoenix
Interior Parts for Sale
12
Feb 4, 2016 07:10 AM
