do you change the transmission oil in a 2008 Grand Prix or is the transmission sealed?


Asked by Jul 05, 2013 at 08:01 PM about the 2008 Pontiac Grand Prix

Question type: Maintenance & Repair

Was told to change oil, then a mechanic told me they were sealed and could not be changed.

7 Answers


How many miles on it? Is it operating properly?

2 out of 2 people think this is helpful.

109,000 miles and running great, no problems.

1 out of 1 people think this is helpful.

Oh ok. If trans fluid still looks good. -- not real dark -- I personally would not fool with it. As long as you are not having issues it should be ok.

2 out of 2 people think this is helpful.
Best Answer

Why were you told to change it?


because of the mileage on the car.


Oh I see. My work truck 2007 dodge quad cab has 160000 miles on it and trans fluid still looks good. Runs great and has never been changed. That being said it will probably fall to pieces next week. Lol. Now mine has been run hard and put away wet way to many times and I know its about time for me to do a trans filter and fluid change. But with yours I would not worry about it till you start having issues. Now that does not mean to drive it till it quits. If you start to notice it shifting a little different or little noises that you haven't heard before then follow thru with servicing it.

1 out of 1 people think this is helpful.

Your mechanic was telling you this based on GMs maintenance schedule. GM says to change your transmission fluid and transmission filter every 100,000 miles. BUT these transmissions, to be honest, are troublesome and prone to failure. In this case, leave it alone. If it works, don't fix it!! HTH. -Jim

3 out of 3 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Transmission 2 answers

    On my 2006 Pontiac Grand Prix I had a leak on my transmission I knew it was the gasket so I changed it as well as the filter too but now that I fix it and doesn't leak no more now my car doesnt wa...

    2006 Pontiac Grand Prix


    Maintenance & Repair

  • Grand Prix leaking transmission fluid out the drive axle 2 answers

    Same tranny but out of a Monte Carlo from salvage yard. All new seals but when starting the car trans fluid pour out the drive axle. any ideas?

    1985 Pontiac Grand Prix


    Maintenance & Repair

  • Transmission 2 answers

    I have a 2007 grand Prix. The car ran perfect yesterday and today the reverse and 1st gear only work.. Fluid went quick.. Please help.. Im without a car, at my daughters and about 90 miles from ...

    2007 Pontiac Grand Prix Base


    Maintenance & Repair

  • Can a grand am transmission go in a grand prix 1 answer

    2005 Pontiac Grand Prix GT


    Maintenance & Repair

  • how to change a rear transmission seal in a 2008 chevrolet cargo van 1 answer

    want to change rear transmission seal, I want to do it myself

    2008 Chevrolet Express Cargo 2500


    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,785 nationwide Grand Prix listings starting at $1,195.


Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,520
#3 munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
999 Great Deals out of 36,595 listings starting at $1,800
Used Pontiac G8
19 Great Deals out of 428 listings starting at $5,800
Used Dodge Charger
534 Great Deals out of 29,284 listings starting at $2,343
Used Chevrolet Monte Carlo
16 Great Deals out of 1,737 listings starting at $1,695
Used Pontiac G6
138 Great Deals out of 4,988 listings starting at $950
Used Chevrolet Malibu
1,159 Great Deals out of 80,222 listings starting at $2,495
Used Ford Mustang
716 Great Deals out of 38,848 listings starting at $1,999
Used Chrysler 300
514 Great Deals out of 21,194 listings starting at $1,500
Used Nissan Maxima
501 Great Deals out of 25,223 listings starting at $1,500
Used Chevrolet Tahoe
1,098 Great Deals out of 31,959 listings starting at $1,495

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
15 Great Deals out of 469 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
523 listings starting at $1,995
2006 Pontiac Grand Prix For Sale
5 Great Deals out of 636 listings starting at $1,550
2005 Pontiac Grand Prix For Sale
7 Great Deals out of 442 listings starting at $1,195