Maintenance....

[1sikyukon]

Hey guys, so I have a 2008 yukon slt with 45,000 miles on it. It is my daily driver and I was just curious to know what maintenance you guys do for your trucks or what you guys recommend. I get my oil changed every 3,000 miles, get my tires rotated, clean my K&N airfilter as often as necessary. I am curious to know what you guys think about things like:

-When/if to do transmission service?
-When/if to do rear/front differential service?
-When/if to do power steering service?
-When/if to do intake cleaning/ fuel injector cleaning?

Took my car to the shop the other the day to get the oil changed and ofcourse guy tried upselling me on a whole bunch of services and I am curious to know when are these things really need to be done? Any info would help!

 

[Sierkonblazer]

These are typical normal/severe mileages...
Tranny 75k/50k
Diffs 100k/75k
Steering 100k
Intake check every oil change- if you can see light through it, its still good, or look at your filter minder.
Injectors- just run a bottle of good injector cleaner (Amsoil, Redline, Royal Purple, Lucas, not the crap you buy at the corner store) every other oil change.
And you dont need to change your oil every 3000 miles. Those days are long gone. Oil is better these days and typical intervals run 5000 miles, unless you do alot of offroading, then stick to 3000 miles. Some synthetics can even be changed at 7500 miles or more. I run Amsoil in all my vehicles, and dont change the oil for 7500 miles. My Sierra run a dual bypass filter and I currently have 33000 miles on the same oil- I just do an oil analysis every 10k miles.

 

[Zed 71]

Follow the recommended service intervals in your manual.

IMO just run good gas (Chevron, Shell, etc.) with cleaners. Those are top tier formulations with standards. Are those injection cleaners graded or reviewed by third parties?

 

[edgaranah1]

One month ago If anyone told me to put an injector cleaning fluid on my gas I would of been like your CRAZY. I wasnt going to put any of that thing in my truck. But after having a little engine knock of some sort I tried the lucas injector cleaner and it made the knocking disapear. I have always used 91 octane. I wouldn't put some again but that Lucas did some good in my engine.

Sent from my BlackBerry 8530 using Tapatalk

 

[Zed 71]

^How many miles on your truck, ambient temperatures, and what brand of gas were you using?

 

[phileaglesfan]

3k per oil change is too often unless you go off road a lot.

I would change the transfer case fluid (50k miles recommended by GM) and auto tranny (GM says severe service is 50k miles which includes city driving, hills, hot/cold temps, etc).

Wouldn't hurt to change the dif fluids.

Forget the fuel system cleaners, all profit for dealers. I use Chevron in my cars, also Lucas every oil change or so. I also use Lucas ethanol cleaner since we have all E10 here in Utah. Engine seems to run better with the ethanol cleaner plus it is supposed to prevent corrosion from using ethanol.

---------- Post added at 05:55 PM ---------- Previous post was at 05:54 PM ----------

PS fluid is not needed but I guess I would change it eventually, maybe around 80-100k. I'll probably change the plugs around that time and coolant at the same time (4-5 years). Wouldn't hurt to replace the O2 sensors around that time also.

 

[Sierkonblazer]

Yes, fuel additives do work. THe cheap crap you buy at Walmart and the corner store are junk, basically all they are is isopropyl alcohol which mildly help break up varnished fuel deposits, but mainly a waste of money. The higher end products like Lucas, Amsoil, Redline, etc contain detergents, stabilizers, and surfactants that help dissipate water, break up varnish and cut down on carbon deposits. Is one bottle going to make that drippy fuel injector spray like new? No, they are primarily designed as preventative maintenance. You will need them less using higher tiered fuels like Shell, Cheveron, Texaco, etc, but even their fuel is crap from time to time.