Black oil really fast after change

Killowatt · Dec 9, 2004

My new CK20HST has 4 hours, "factory oil", and my dealer says the black oil is normal - should be good for 20-25 hours. Also says he uses Mobil oil when they change it and that stuff is greenish. I've always been a Pennzoil fan for all my gas engines - that's always a light amber(like beer!!).

Just got the rear tire chains installed today, now I'm hoping for a foot of snow. That's reasonable here in the WNY snowbelt.
/forums/images/graemlins/shocked.gif

DK35vince · Dec 9, 2004

( My new CK20HST has 4 hours, "factory oil", and my dealer says the black oil is normal - should be good for 20-25 hours. )

I did my first motor oil change at 50 hours, the second change at 100.
I try to change the oil at ever 100 hours or so after (although I did run over 200 hours between oil changes this summer /forums/images/graemlins/shocked.gif.. Just had to much to do around the new house to get to it)..

KiotiJohn · Dec 11, 2004

( I did my first motor oil change at 50 hours, the second change at 100.
I try to change the oil at ever 100 hours or so after (although I did run over 200 hours between oil changes this summer .. Just had to much to do around the new house to get to it).. )
When you're using offroad high diesel, it's a good idea to change the oil more frequently to avoid damage from sulfuric acid content that is higher in the high sulfer fuel. I change mine at 50 hours because of this. Manual reccommends every 100. John

DK35vince · Dec 11, 2004

John,
I sure don't recommend running 200 hours between oil changes. I simply had to many things going on (digging and installing utilities/getting new house built/moving/mowing/building driveway/work).
A real hectic summer, I'll try not to let it happen again /forums/images/graemlins/tongue.gif

KiotiJohn · Dec 11, 2004

( John,
I sure don't recommend running 200 hours between oil changes. )
Although I responded to your thread, it wasn't really directed at you Vince. I know that you said in your other post that you couldn't get to it. I just wanted others to know about the high sulfer problem as people new to diesel may not know.
Sorry if it seemed I was battering anyone! /forums/images/graemlins/grin.gif John

DK35vince · Dec 11, 2004

( Although I responded to your thread, it wasn't really directed at you Vince.
Sorry if it seemed I was battering anyone! /forums/images/graemlins/grin.gif )

All is well John..
I never took it as you were battering me..
I just looked at the milage on my wifes car, its way overdo for an oil change also /forums/images/graemlins/shocked.gif ( I can't get her to occasional pull the dipstick, let alone let me know when its due for an oil change)

RedDog · Dec 12, 2004

( ( I can't get her to occasional pull the dipstick, let alone let me know when its due for an oil change) )

Sounds like we have the same wife!! /forums/images/graemlins/grin.gif

RedDog

KiotiJohn · Dec 13, 2004

( I can't get her to occasional pull the dipstick, let alone let me know when its due for an oil change) )
I never knew a person who took better care of a car than my late wife. She used to bagder ME about it. John