Gents,


How do you go about determining how much life the system thinks is left in your oil before a change is required. I've put better than 6K miles towing a 37' 5er and never did see the change oil light come on. I would suspect that pushing the engine that hard would require an oil change much before that time.

Just wait a little longer it will come on.


good luck

Gents,


How do you go about determining how much life the system thinks is left in your oil before a change is required. I've put better than 6K miles towing a 37' 5er and never did see the change oil light come on. I would suspect that pushing the engine that hard would require an oil change much before that time.





Brad, I also think about if + -7.5K (approx when the light comes on) is based on normal driving or heavy towing. Maybe one of the GM Techs will chime in if the answer is out there at all.

Tommy,


While snooping around some of the other messages one noted how to read the hours. With the key not in the ignition, press the odometer reset and hold it down for 7 seconds. What I'm not clear is this number reset when you clear the change oil indicator to some number then decrements to zero or what. I didn't record that figure so I don't know exactly what that number represents yet. I'm sure some of the gear jammers out there can provide an exact answer to this one. I know that there are some very knowlegable dudes out there.

Try reading this, it should answer some questions http://www.gm.com/automotive/vehicle_shopping/suv_facts/300_ (http://www.gm.com/automotive/vehicle_shopping/suv_facts/300_env_emissions/6_oil_life_system.html) env_emissions/6_oil_life_system.html


Of course if you modify the truck, it won't know it and will not know to shorten the oil change interval. The "Hobbs" meter is cumulative and cannot be reset I don't think. One use of it would be to verify the odometer reading if you were looking at a used vehicle.

I'm quite clear what the "Oil Life System" is attempting to do. The main thing I would like to know is how folks are calculating oil life left. That way I can determine if an oil change would be warranted before a long trip. I know that some guys out there are doing it. I just want them to let the rest of us in on their secret method.


Brad

Some scanners will give you the oil life remaining in %. I know My autotap will.

I just wish I could reset the damn thing!!!!!!!!!!! It's driving me nuts.

Try reading this, it should answer some questions http://www.gm.com/automotive/vehicle_shopping/suv_facts/300_ env_emissions/6_oil_life_system.html (http://www.gm.com/automotive/vehicle_shopping/suv_facts/300_env_emissions/6_oil_life_system.html)


Of course if you modify the truck, it won't know it and will not know to shorten the oil change interval. The "Hobbs" meter is cumulative and cannot be reset I don't think. One use of it would be to verify the odometer reading if you were looking at a used vehicle.





I didn't see engine load posted in this link. It would be interesting to know if this is one of the variables calculated in.

03 and up with dic can get the % on the dash

I think you need the steering wheel controlls to have it give it to you in the D.I.C.


I have to use my scanner on my truck.


I run it hard with a hot program so I change at 1/2 remaining.


Or just change it at ever 7k to be safe unless you can cange it when it comes on(so dont go on a long road trip if you have more than 7k on a change).


Make sense? JMO


bassin - I'd say you arnt getting 100% throttle? there is a tsb so it should be waranteed even if you are out of it I would think?

Brad97 straightened me out on resetting it. I was not holding on the third pump and blinking three times. I was just pumping it three times and not holding the third pump.Edited by: BassinRVer

if you towed youer 5ver it will come on soon i would not take another trip before changing oil makes a big diffrents if youer pulling or not

Remember it's hurts nothing on the truck to change the oil early and may give you peace of mind to know you are starting out on fresh oil and don't have to worry about changing it. MY .02

I change my oil every 5K no matter what. Also glad I have the steering wheel controls, so much easier to reset....http://www.dieselplace.com/forum/smileys/smiley17.gif

Gents,


Thanks for the Info. I did change the oil after that trip and went off on another. It's too bad on the earlier models like mine that there isn't an easy way to check oil life left, but I did learn how to check engine hours, and managed to help someone else out. Ya know, with the oil life system it almost makes a diesel cost effective if you know what I mean. Again thanks for the input.





Brad

Mine came on for the first time at 10,147 miles, while I was about 200 miles into my 3rd oil change.

how do you reset it with the steering wheel controls?

Somebody with an 03 or later Chev will have to answer that question.





Doesn't your qwners manual tell you?





Brad

it sayes to use the select button. Don't know what that is. http://www.dieselplace.com/forum/smileys/smiley5.gif

I have an 04 with the DIC and I just use the normal way. Turn on ignition, pump accel pedal 3 times and on the 3rd pump hold it for a couple of seconds and your done...........it's faster than the other way..........

Wakeboarder, the select button is the lower right one with the arrow...you need to hold down the select button for a couple of seconds when you have your oil life percentage showing in the DIC. It will then reset back to 100%.


http://www.dieselplace.com/forum/uploads/4x4man/2004-10-05_054525_Select.JPGEdited by: 4x4man