2004 Pontiac Grand Prix GTP

**turbo96** · 07-19-2015

2500rpm...tyvm!

**Scottydoggs** · 07-19-2015

hes right, keeping it under 2000 rpm will save gas. so would a wood block under the gas pedal lol

**Grimsin** · 07-19-2015

or take the belt off the supercharger lol

**Scottydoggs** · 07-19-2015

i need to try that, being im bottom swapped, im sure it would feel better then the l67 did, cause it would't move with out the blower belt. a real dog.

**turbo96** · 07-21-2015

Ok 25mpg @ 68mph it is.😢 For the most part all trips were 68mph and kept below 2000 rpm.

**Grimsin** · 07-22-2015

Boost loves gas. Numnumnum

**turbo96** · 07-22-2015

I think someone was smoking something when they wrote this for mpg!😆

**ADrugDealer** · 07-22-2015

I got 32 on the hwy..... Lol

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**ADrugDealer** · 07-22-2015

When I was gas and stock

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**turbo96** · 07-22-2015

Oh well, it looks good!

**turbo96** · 07-22-2015

Originally Posted by ADecker

I got 32 on the hwy..... Lol

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I would love it even more if I got that!

**J57ltr** · 07-22-2015

My 05 has gotten as low as 15 and as high as 21. When I drove an 05 as a rental car I got 14 mpg and it was a brand new car at the time. Since getting my car running correctly I notice that it takes about .9 gallon to get home. Yesterday I was running some guy in a BMW and ended up using 1.3 gallons. So yes boost loves the fuel.

Jeff

**ADrugDealer** · 07-22-2015

Cobalt does great. Love the little thing.

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**HighOctaneRacing** · 07-23-2015

Originally Posted by ADecker

Cobalt does great. Love the little thing.

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Oh No! Decker you're gonna die driving that car! Lol

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**turbo96** · 07-24-2015

Originally Posted by spazzz

Do you have an Onstar antenna? I think I see one .....if so you are going to want to make sure its sealed

Well it leaked again out of the light by the rear view mirror.

I'm glad you said something! TY!

**spazzz** · 07-24-2015

Black RTV under the antenna gasket on the roof. You have to get the nut loosened way up on the threaded nut.
Now if you have someone push up from in the cabin, so you can lay a pretty bead under it you will be crackin, but inject some in the hole first.

I managed by myself somehow. That was 8 years ago and hasn't leaked since.
I probably used silicone spray (like removes like) to get rid of the excess. Be careful not to mar the area.
One pass section swipes with a microfiber saturated with silicone spray and another to wipe it dry.

This link from GPONA has the dome light disassembly from the GM manual towards the bottom of the page.

http://www.gpona.com/forums/viewtopi...ight=star+leak

edit.....probably leaking sauce because of that damn bra dealie LOL

**turbo96** · 07-24-2015

Originally Posted by spazzz

Black RTV under the antenna gasket on the roof. You have to get the nut loosened way up on the threaded nut.
Now if you have someone push up from in the cabin, so you can lay a pretty bead under it you will be crackin, but inject some in the hole first.

I managed by myself somehow. That was 8 years ago and hasn't leaked since.
I probably used silicone spray (like removes like) to get rid of the excess. Be careful not to mar the area.
One pass section swipes with a microfiber saturated with silicone spray and another to wipe it dry.

This link from GPONA has the dome light disassembly from the GM manual towards the bottom of the page.

http://www.gpona.com/forums/viewtopi...ight=star+leak

edit.....probably leaking sauce because of that damn bra dealie LOL

Thanks Tim, EASY ON THAT BRA. LOL😉