Jump to content

3.0L Diesel Owners Heads Up On Oíl Changes!

ILSilverado
 Share

Recommended Posts

Wintersun Enthusiast

Wintersun

Posted
Posted

With a diesel engine the type of driving is more important than the miles driven. Diesel is a very dirty fuel as compared to gasoline and even with 98.7% filtration there are still 240,000 particles that get past the filter media and hit the injector solenoids at very high pressure and some of these get into the motor oil.

 

Someone who drives mostly short trips of less than 30 minutes duration is going to need the oil changed much sooner than a truck that is driven mostly on the highway with trips of an hour or more in duration. Consider the first situation and driving on average at 30 mph as compared to the second situation with an average speed of 60 mph. The first truck driven for 6,000 miles will have 200 engine hours as compared to the second truck with 100 engine hours and the first truck's engine will have been driven with the engine cold for a much greater percentage of the time.

 

The DIC determines oil changes based on driving pattern for that vehicle and is a better indicator than an abstract number. In addition with modern engines and modern motor oils, especially those that meet the new API SP specification, hold up far better and even truck fleet operators are greatly extending change intervals for their trucks. 

  • Like 1
  • Replies 31
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

ILSilverado
ILSilverado

The Dexos-D 0W20 and the PF 66 oil filters are VERY HARD to locate. Before making an oil and filter change at the dealer call the parts department FIRST. Most dealers do not stock the oil or the filte

ILSilverado
ILSilverado

The Delco part number for the filter is, #55495105 /PF66  The Oíl is Dexos/D 0w20 and I’m told it’s only sold under the Delco and Mobil-1 labels as of now. In fact it’s sourced under the Delco brand b

ILSilverado
ILSilverado

Every 7500 miles. I’m changing mine at 1500 for the first time then I will go to a 5000 mile schedule after that.

Posted Images

redwngr Senior Enthusiast

redwngr

Posted
Posted

FWIW, there are still only two oils on the DexosD approval list.

 

Brand Name Supplier Specification Viscosity License Number Region
ACDelco Light Duty Diesel General Motors dexosD™ 0W-20 DD0751IA015 Global
Mobil Super 3000 XE2 ExxonMobil Oil Corp. dexosD™ 0W-20 DD0752IA015 Global

 

 

 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • newdude
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By newdude · Posted

      No such thing as regenerative braking on a pure ICE vehicle.     Regenerative braking is the re-capture of energy from electric motors and stores it in the battery pack.  So hybrids, PHEV and EVs have regenerative braking.     What you are seeing is the charging system changing modes is all.  Its likely entering charge mode for some sort of reason is all.  All of the charging modes will be listed below.   As for L10 vs D.  L10 turns off automatic grade braking.  L10 puts you in control of grade downshifts where in D it will automatically do it based on brake pedal position and other factors.  Otherwise L10 and D drive exactly the same aside from that one aspect.    Battery Sulfation Mode The BCM will enter this mode when the interpreted Generator output voltage is less than 13.2 V for 45 minutes. When this condition exists the BCM will enter Charge Mode for 2–3 minutes. The BCM will then determine which mode to enter depending on voltage requirements.   Charge Mode The BCM will enter Charge Mode when ever one of the following conditions are met:   Windshield wipers are ON for more than 3 s. Climate Control Voltage Boost Mode Request is true, as sensed by the HVAC control module via serial data. High speed cooling fan, rear defogger, and HVAC high speed blower operation can cause the BCM to enter the Charge Mode. The estimated battery temperature is less than 0°C (32°F). Battery State of Charge is less than 80%. Vehicle speed is greater than 145 km/h (90 mph) A current sensor malfunction exists. System voltage is determined to be below 12.56 V When any one of these conditions is met, the system will set targeted generator output voltage to a charging voltage between 13.9–15.5 V, depending on the battery state of charge and estimated battery temperature.   Fuel Economy Mode The BCM will enter Fuel Economy Mode when the estimated battery temperature is at least 0°C (32°F) but less than or equal to 80°C (176°F), the calculated battery current is less than 15 A and greater than −8 A, and the battery state-of-charge is greater than or equal to 80%. Its targeted generator output voltage is the open circuit voltage of the battery and can be between 12.5–13.1 V. When fuel economy mode is active, the generator is not charging, only maintaining open circuit battery voltage. The BCM will exit this mode and enter Charge Mode when any of the conditions described above are present.   Headlamp Mode The BCM will enter Headlamp Mode when ever the head lamps are ON (high or low beams). Voltage will be regulated between 13.9–14.5 V.   Start Up Mode When the engine is started the BCM sets a targeted generator output voltage of 14.5 V for 30 s.   Tow/Haul Mode (if applicable) Pressing the Tow/Haul Mode button located on the center stack, the vehicle system voltage is raised and the remote (non-vehicle) battery will be charged. Having the headlamps on will raise the system voltage and if the Tow/Haul button is applied it will not serve any purpose. The voltage is regulated between 13.9-14.5 V.      
    • jaszr2
      Active Grille Delete

      By jaszr2 · Posted

      Hello from Australia Just sharing that there is now a way to delete the active shutters entirely with just a plug in module. Opens up tons of room to light bars etc.
    • jake111
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By jake111 · Posted

      I have an observation and a question... 1) I watch the voltage closely because I have had to dial in the cut-in/cut-out voltages of the battery separator to my camper.  The "smart" charging drives me nuts.  Anyway, I noticed that when coasting for a while, and especially if lightly using the brakes (though not necessary), the voltage goes up from mid/high-13 volts to mid/high-14 volts.  Then it drops back down after stopping or going again.  Consistently!   The only explanation I can come up with is REGENERATIVE BRAKING!  Well, maybe that's a little bit of an exaggeration, but it's certainly free extra battery charging.   2) Driving on mountain roads I will use L and vary the max gear.  Things straighten out and I end up in L10.  Sometimes I leave it there for a while.  Is there any difference between L10 and D?   
    • devonthegreat
      anyone interested in a 2002 Chevy Silverado 4x4 parts truck NYC

      By devonthegreat · Posted

      **SOLD** Please end or delete post. thank you
    • PBNB
      Tire pressure for 37s

      By PBNB · Posted

      Do you think this width might affect the chalk test with a higher pressure closer to 65psi? I think lowering the pressure makes sense to get the tread to lay flatter

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...