Relatively dumb maintenance questions....

[TahoeFL2017]

Bought the 2017 Tahoe 4x4 from Hertz around 22 months ago. I worked at Enterprise straight out of college, so I know the rental cars are probably maintained pretty well.

So I took it to the dealer for all service since 31k miles, now just hitting 44k miles 2 years later. I only drive around town, don't tow sh**, and my two longest trips were up to Jax Beach FL and this week to Sebring.

Questions :

-should I bother with any tranny flush/differential fluids, etc? Waste of $$$?
-Oil is going to get changed, do y'all run synthetic?
-Should I buy a cabin air filter plus air filter, and do it myself? or just pay the dealer, as my mech skills are pretty bad and I work all week , not on Tahoes.
-Anything else I should do at 44k miles?

Last question - how happy are you with the Black Bear tune? I averaged 22.7 mpg doing 80+ to Jacksonville, so I don't mind the AFM, in a 2017 , would you do a tune or not?

I like performance, but my wife just mall-crawls with it, so let me know your thoughts!

ANY and ALL replies appreciated!

 

[swathdiver]

Questions :

-should I bother with any tranny flush/differential fluids, etc? Waste of $$$?
-Oil is going to get changed, do y'all run synthetic?
-Should I buy a cabin air filter plus air filter, and do it myself? or just pay the dealer, as my mech skills are pretty bad and I work all week , not on Tahoes.
-Anything else I should do at 44k miles?

Last question - how happy are you with the Black Bear tune? I averaged 22.7 mpg doing 80+ to Jacksonville, so I don't mind the AFM, in a 2017 , would you do a tune or not?

I like performance, but my wife just mall-crawls with it, so let me know your thoughts!

ANY and ALL replies appreciated!

The spec for your engine is for full synthetic fluid so I would run what it was designed for. Yes, change all your driveline fluids by and every 50K miles. Good insurance/early warning man.

Don't the K2s already have the cabin filter?

Am well pleased with the BlackBear tune on my older GMT900. Best part to me is transmission performance. Much more fun to drive than before, the extra power is nice too.

 

[OR VietVet]

Since it spent most of it's life as a rental and likely got driven pretty hard, IMO, I would do all the fluid changes now and get it to a base that you KNOW what has been done. I would include the brake fluid and the P/S fluid as well. Air filter if needed. I would do the cabin air filter now too. Your call of course.

 

[Miami-Dade]

Bought the 2017 Tahoe 4x4 from Hertz around 22 months ago. I worked at Enterprise straight out of college, so I know the rental cars are probably maintained pretty well.

So I took it to the dealer for all service since 31k miles, now just hitting 44k miles 2 years later. I only drive around town, don't tow sh**, and my two longest trips were up to Jax Beach FL and this week to Sebring.

Questions :

-should I bother with any tranny flush/differential fluids, etc? Waste of $$$?
-Oil is going to get changed, do y'all run synthetic?
-Should I buy a cabin air filter plus air filter, and do it myself? or just pay the dealer, as my mech skills are pretty bad and I work all week , not on Tahoes.
-Anything else I should do at 44k miles?

Last question - how happy are you with the Black Bear tune? I averaged 22.7 mpg doing 80+ to Jacksonville, so I don't mind the AFM, in a 2017 , would you do a tune or not?

I like performance, but my wife just mall-crawls with it, so let me know your thoughts!

ANY and ALL replies appreciated!

I did the tranny flush at 60K miles but 50K miles will probably be better. Dealer did it.

Only run 0w20 Synthetic. I recommend Mobil 1 or AC Delco Full Synthetic like the dealer uses. I change the oil at 5K miles. if you use a different oil make sure it has Dexos.

Cabin filter... I do mine around 35K miles as I leave my a/c system constantly on. Air filter would be good also at 44K miles.

My AFM is still enabled as it does not bother me but to each their own.

I only use 87 octane Exxon-Mobil fuel. I get around 23-24MPG if is all 100% highway. Do not buy Shell fuel.

You really should not need anything else. Anything else be would be a wallet flushing.

All that IMHO.

I am at 76K miles and that is all I have done so far.

BTW I have bought [ as well as family members] many rental vehicles. They were all serviced regularly at 5K miles. No issues with them. I agree most rental agencies maintain them. I bought from Enterprise and Hertz.

 

[Miami-Dade]

Don't the K2s already have the cabin filter?

Yes

 

[spidermanstahoe]

I would include the brake fluid and the P/S fluid as well.

P/S fluid that’s funny we have electric power steering.

 

[Joseph Garcia]

When the time is appropriate, do consider a Black Bear tune. You will be happy with it, and it won't be any less driveable for your wife.

 

[LT1ZOB]

Mine was owned by an 80 yr old gentleman for 2 years/22k miles. It was babied. I still did dif, trans, oil the week I brought it home. Now I know it’s done right.

 

[OR VietVet]

P/S fluid that’s funny we have electric power steering.

What's this we stuff Kimosobee! If I have P/S fluid everyone else should. I own a 2002. Again, I ran shops for 35+ years and have not in about 10 so I am unaware of this. Old dog. New tricks.

 

[swathdiver]

What's this we stuff Kimosobee! If I have P/S fluid everyone else should. I own a 2002. Again, I ran shops for 35+ years and have not in about 10 so I am unaware of this. Old dog. New tricks.

K2s have electric steering as did the GMT900 Hybrids. I do not know if it is electric/hydraulic or not though, never paid attention.

 

[OR VietVet]

I do remember when GM had the EVO steering sensor and what a pain those were to deal with. I guess I need to at least drive one with the electric power steering.

 

[91RS]

Bought the 2017 Tahoe 4x4 from Hertz around 22 months ago. I worked at Enterprise straight out of college, so I know the rental cars are probably maintained pretty well.

So I took it to the dealer for all service since 31k miles, now just hitting 44k miles 2 years later. I only drive around town, don't tow sh**, and my two longest trips were up to Jax Beach FL and this week to Sebring.

Questions :

-should I bother with any tranny flush/differential fluids, etc? Waste of $$$?
-Oil is going to get changed, do y'all run synthetic?
-Should I buy a cabin air filter plus air filter, and do it myself? or just pay the dealer, as my mech skills are pretty bad and I work all week , not on Tahoes.
-Anything else I should do at 44k miles?

Last question - how happy are you with the Black Bear tune? I averaged 22.7 mpg doing 80+ to Jacksonville, so I don't mind the AFM, in a 2017 , would you do a tune or not?

I like performance, but my wife just mall-crawls with it, so let me know your thoughts!

ANY and ALL replies appreciated!

I generally like to change all fluids early for the first time on my stuff but I generally don't recommend that to customers because they think they're being ripped off. My recommendation would be do a transmission filter as that will change 75% of the fluid plus you get a new filter. Definitely change the transfer case fluid, there are clutches in there that will greatly benefit from the new fluid (this should be done every 50k). I'd go ahead and change the differentials once but probably not worry about it again since they're already broken in, just make sure the front differential stays full since that fluid like to just disappear. Brake fluid is very important and many people forget about it, that should be done every 2-3 years not dependent on mileage. Definitely take care of the air filters, cabin filters are due at 20k miles and the engine air filters can go 30k-50k depending on how dirty your driving environment is. I would recommend using Mobil 1 oil, even if you have the dealer do the oil changes you can buy the oil at Wal-Mart in 5 qt. jugs and provide it to save some money since the single quarts cost much more.

If you have a reputable tuner in your area, an in person tune is always better. I've never used Black Bear but I wouldn't hesitate to based on what I've heard over the years. I've got a great tuner 10 minutes from my house so I've never had to use anyone else.