if i were to change from regular oil to amsoil and change the oil every 7k miles and keep up with all the maintenance with no more mods than a pcm and gutted airbox what is the life expectancy?

__________________
All that work and all those mods mean nothing if your ride isnt clean

There are some people over 200k mile people on this board. I only have 74k on my 2000 so i got a lot of years to go.

I have 112K on my bone stock GT and it's running strong.

__________________
Team Airborn

I am sure that 'grandprixfamily' on the other forum (and he might be over here too) has close to 300k on his GT. Should be no problem for the engine, but the tranny is the largest issue I see.

__________________
1997 GTP - 200k+ miles, PEMs, 3" SS Exhaust w/ Borla Mufflers, 3.4", 180* stat(summer), FWI, 1.84 RR, PT, SLP hood, KYB GR2s, GMPP Handling Kit, etc...

as long as you take care of it, practically forever.

__________________
98 XGT - 3.2/3.4, s&s, ported m90/TB/LIM, 1.9s, jp dbl; tinted, blacked out, lowered
soon -> e85, meth, and a lot smaller pulley

I have seen over 400k on a 3800 engine, heck even an engine that everyone says is garbage I have seen 200k on (the lowly 307)

__________________
Steve
'97 GTP VS cam, ZZP PCM, and not much else yet

I have a 98 GTP
Have 322224.8 on the same motor and tranny
Just put headers SLP on it this month,
But have been running a 3.4 DHP. well see mods below
for the last 6 mos now and the car is
driving and acting like it just came off the lot...
My car is not a garage queen and is driven every chance
i get this is the first year not driven in the snow...
I have done some body work on it and it will need a new
gas tank and lines sometime this year.
I will be also redoing the top end gaskets just to make sure
everything stays this way.
So i guess bottom line is you look after it it will be there 4 you...

__________________

1998 GTP, U-Bend Delete,Hi-Flow Cat,No Res,SLP Headers,BRISK Plugs ,180 T-Stat, 3.4 pully
2007 GM Show and shine August 10http://www.youtube.com/v/aRh91q1jRio&rel=1
OQCGP Clubhttp://www.youtube.com/v/j_YHmgU9ehs&rel=1

I have 155K on my GT right now....and shes still running strong

__________________
2001 GTP street car- GT45 turbo,Stage 4 Intense turbo cam,FMIC,150 wet, double roller timing chain, Diamond forged coated pistons 8:0:1, Diamond piston rings, cryoed L32 connecting rods, Cryoed crank, Clevite77 main bearings, Clevite77 cam bearings, Clevite77 L32 rod bearings, ARP Everything, Intense/meizere true billet Flexplate, Custom UIM, Intense oil pressure kit, Cometic 4 layer head gaskets, OE-R lifters, Cryoed L67 block, ATI turbo dampner, MUCH MORE, 6 more to choose from ASE Certified

They should last for a good while if you maintain them.

__________________
MACGP President
3.25"/P&P Gen III/ZZP Stg II TB/Thasher CAI/ZZP VS Cam/TOG Xtremes/AL 104s/180*/Full 3" Exhaust/SD Package/GMPP Sways & Arms/DuBob'd

It will last a LONG time

__________________
2001 GTP street car- GT45 turbo,Stage 4 Intense turbo cam,FMIC,150 wet, double roller timing chain, Diamond forged coated pistons 8:0:1, Diamond piston rings, cryoed L32 connecting rods, Cryoed crank, Clevite77 main bearings, Clevite77 cam bearings, Clevite77 L32 rod bearings, ARP Everything, Intense/meizere true billet Flexplate, Custom UIM, Intense oil pressure kit, Cometic 4 layer head gaskets, OE-R lifters, Cryoed L67 block, ATI turbo dampner, MUCH MORE, 6 more to choose from ASE Certified