paccar mx-13 oil usage?

You do again oil change in next 40k miles and next oil change will be with new engine.

 

i might b wrong but i think that is why your using oil? i change the oil every 12 to 15 k.

 

I have same engine in a t680 50000 miles never added more than a1/2 gallon to 40000, however I did just start to have oil pressure light problems, shop mech. Said that it has happened to a few of the trucks in fleet. He was not consered .After watching it comes on at start up,if you shut down when it's on then restart it goes away, at least on mine. Good luck

 

have same engine in a t680 50000 miles never added more than a1/2 gallon to 40000, however I did just start to have oil pressure light problems, shop mech. Said that it has happened to a few of the trucks in fleet. He was not consered .After watching it comes on at start up,if you shut down when it's on then restart it goes away, at least on mine. Good luck

am i missing something ? 40000. miles between oil change ? i thought going 15000 between oil change was excessive .

 

40000 is the recaminded interval

 

Wow .when did they start recommending that?

 

Recommended or not I would never go 40000 on first oil change .. I do 20000 in my mx13 doesn't use a drop cheap insurance if you ask me .. I was at a Quebec kW and the mechanic said that some guys who were running the 40000 like factory recommends are now having issues AFTER warranty expired .. Don't forget to do the 40000 mile valve adjustment or they might deny future claims

 

synthetic oil
my 700 was 40000 mile oil changes never added any between changes in 200000 miles