What Happens When You Don't Change the Oil
Dear Lord. According to the article this was the engine of an Audi TT that had not had its oil changed for 84,000 miles. There's not much detail beyond that, but the article has a higher resolut...
Forum Discussion
goducks10 wrote:
There was guy on the Ram diesel forum that IIRC ran Amsoil for 24,000 miles in his newer 6.7 CTD. I don't remember if it was once or twice but he ruined the motor. Thick sludge when they tore into it. He misread the Amsoil milage recommendation and missed the part about diesels. Live and learn I guess.
Diesel Engine Service
Three times (3X) OEM* recommendation, not to exceed 50,000 miles/600 hours or one year, whichever comes first. Drain intervals may be extended further with oil analysis.
2007-2009 Caterpillar C13 and C15 on-highway engines must follow OEM drain interval.
2007-Present Dodge, Ford and GM light-duty diesel pickups must follow OEM-recommended drain interval. Drain intervals may be extended with oil analysis.
I ran one year oil changes in my 2004 and at 110,000 miles when I had the lifters adjusted the guy asked "how many miles do you have on the truck?" when I told him he said he could not believe how clean the engine was. You do have to use their filter and it has to be changed every 25,000 miles or one year. I posted a pic of the top half during the adjustment I'll see if I can find it.
Don
