Engine Oil

[Farmboy]

Very dumb question, but I don't have a manual for this truck... what weight of oil and how much oil do these motors take? I need to change my oil. I haven't done it since I bought the truck yet so I think it would be a good idea. Probably should have done it sooner but didn't have time.

[SOOT4BRAINS]

Above 10 degrees f, it calls for 15w40. If colder than that, it wants 10w30, and if its below 0 with no block heater it calls for 5w30 synthetic, with block heater is 10w30. Mine takes just over 13 quarts to fill up. I use the valvoline blue 15w40.

[Ace]

Or you can use a 5w/40 and not worry about the temperature. Just make sure it is a minimum CI4+ diesel-rated oil - no gasser oil.

[burnt_servo]

my dad has a '98 and '99 cummins , my sister has a ' 89 jetta diesel , and my '91 jetta all run 0w-40 all year round ( we buy it by the 5 gallon pail )

with my vw i noticed a definate improvement in fuel consumption with the lighter oil .

once i finish my '93 dodge , i intend to put it on the same diet .

[Farmboy]

Thanks guys. It ended up taking 13 qt. Now.... how often do you change the oil. My dad said probably 5-6 thousand miles. What do you think.

[Richie O]

I always did 3 to 4 k but thats overkill. Usually its because its been a year or so since, not that Im over milage. I usually only do 3 k a year.

[PJ 3]

In the 18 years that I've owned my truck I have changed every 5000 K
and the engine still run's clean. I run Rotella...........