Just hit 90k - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 5 (permalink) Old 07-06-2019, 09:32 AM Thread Starter
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Just hit 90k

Title says it, I've had this car since 5k, been nice to me. Really only thing I've done maintenance wise was a clutch and tires. How is everyone else doing? Any big ticket items? Guess I'm looking at 100k tune up soon. Any preference on spark plugs and such?
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post #2 of 5 (permalink) Old 07-07-2019, 10:37 AM
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I replaced my original plugs with factory OEM replacements, and will likely do it again in the next year or so. Replacing fluids like coolant and differential fluid would likely be warranted due to age and miles as well.

Joe Morgan, G8 GXP Registry Organizer, G.O.N.E. Organizer 2010-2013
2009.5 G8 GXP WH 6M onyx/red no roof 12.921 @ 108.89 BONE STOCK! (then), 12.344 @ 110.92 with 1.688 60' at 766' DA, PB with new cam & tune - 12.191 @ 112.35 with 1.693 60' at 1319', 2:59 lap time at Road America on RS-As, 143.1298 mph NoFlyZoneMidwest 2017 1/2 mile into 20 mph headwind. RACECAR NOW RETIRED. All of these are final PBs.

VCM OTR CAI, HSRK, Heater Hose Relocate, custom street/dyno tune by oldskoolgp, Comp Cams 224/228 .581"/.588" 112 LSA cam, LS7 lifters, PAC 1219x springs, Monster LT1S (C7 Corvette) Clutch kit, Katech C6 Hvy Dty Master & Slave Cylinders, Camaro 1LE Diff with 3.91 gears, Kooks LTHs, Solo Hi-Flo Cats & Connector Pipes, Solo Mach Balanced Catback, BMR Toe Rods, Trailing Arms, Cradle & Diff Poly Bushings, 2017 Chevy SS front & rear Brembo calipers and rotors.
1 of only 10 built in this combo (1 of 4 this combo with RS-As)& #1497 built of the 1829
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post #3 of 5 (permalink) Old 07-08-2019, 06:01 AM Thread Starter
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That's kind of what I was thinking. As soon as I get my old truck off the rack, the g8 is going in the air for a while
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post #4 of 5 (permalink) Old 07-08-2019, 08:30 AM
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Originally Posted by jmon123 View Post
That's kind of what I was thinking. As soon as I get my old truck off the rack, the g8 is going in the air for a while
100k probably wouldn't be a bad time to check and maybe replace the belts too. From what I have found online, rear diff should be done at 50k, so do that for sure. Trans fluid & filter will be ready for a change too.
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2009 Liquid Red GT

Currently Enjoying : WeatherTech Floor Liners, Tein S. Tech Springs, Monroe PPV Shocks/Struts, SuperPro Polyelast Top Mounts, 19" Sport Wheels & Firehawk Indy 500 Tires, 18" GT Wheels & Continental DWS06 Tires, Subwoofer Wire Mod, Kayhan Audio Headunit, 35% Llumar Ceramic Tint, Morimoto 35W HID Kit

Soon to come: CTS-V 4 Piston Brembos, CTS-V2 Sedan Wheels
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post #5 of 5 (permalink) Old 07-08-2019, 01:58 PM
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Originally Posted by jmon123 View Post
Title says it, I've had this car since 5k, been nice to me. Really only thing I've done maintenance wise was a clutch and tires. How is everyone else doing? Any big ticket items? Guess I'm looking at 100k tune up soon. Any preference on spark plugs and such?
As others have stated, you cannot go wrong with the OEM spark plugs.

For wires, go with ACDelco 748RR (https://www.amazon.com/dp/B000JZZDLM - Yes, they fit the G8).

Avoid the [cheaper] ACDelco 9748RR: https://www.g8board.com/forums/attac...1&d=1562261632

#754 of 1829: GXP
#23 of 67: LR, M6, Roof, Onyx/Red
#22 of 37: Summer-only Potenza tires
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