high mileage maintenance
high mileage maintenance ok, the mileage on my camaro is getting up there. its a 98 auto z28 with t/tops and its at about 89000 miles. obviously changing the oil is going to keep her alive longer but seeing how as im about to hit 90k miles what else would you guys do? i changed the fuel filter at about 80k miles, i should probably change the plugs and wires right? i bought her with 68k on the clock and im not sure what the previous owner did as far as maintenance. car runs great, but i think my transmission might be on its way out. it shifts kind of hard and last week when i floored it from a 60 roll it downshifted fine but when the time came to shift it bounced the rev limiter. first time its done that. so let me know what fluids i should change, maybe i should do a seafoam? let me know, thanks guys.
Staging Lane
Joined: Jun 2007
Posts: 66
Likes: 0
From: Trenton, GA
My 98 just clicked over on 94k and I've done the complete Seafoam treatment (changed the oil 150 miles afterwards), changed the fuel filter (made it run smoother and the old one was shot), and I'm about to change the plugs and rear end fluid.
my stock motor lived till 149K and thats because i took it out againts its will. nothing wrong with it other than a little smoke on a high rpm decel in gear. keep the oil changed on a regular basis and do the little maintenance tunes like orange appeal sent you links to. i was HARD on my motor too 
TECH Apprentice
Joined: Dec 2004
Posts: 328
Likes: 0
From: Downers Grove, IL
plugs/wires/tranny flush with filter/drain and refill rear end/sea foam
I changed my stock plugs at 36k...and they were already wasted...so I would recommend getting your stockers out of there
I changed my stock plugs at 36k...and they were already wasted...so I would recommend getting your stockers out of there
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Just turned over 115k on mine... It's running good cept for a suspicious clogged cat... which will be fixed soon hopefully...
I always changed the oil every 3k miles using Mobil 1 10w30 for a higher mileage car... recently i've started to use the "Extended Performance" line for Mobil 1... Got my rear fluids changed a couple months ago, everything looked real clean... swapped plugs at about 85k miles. Done Seafoam 2 or 3 times. Just flushed the coolant system with my radiator swap... When I blew my tranny I had it rebuilt, I'm guessing that means new fluids...
I always changed the oil every 3k miles using Mobil 1 10w30 for a higher mileage car... recently i've started to use the "Extended Performance" line for Mobil 1... Got my rear fluids changed a couple months ago, everything looked real clean... swapped plugs at about 85k miles. Done Seafoam 2 or 3 times. Just flushed the coolant system with my radiator swap... When I blew my tranny I had it rebuilt, I'm guessing that means new fluids...
