Originally Posted By: BrocLuno
Originally Posted By: KingCake
Originally Posted By: tig1
Originally Posted By: KingCake
Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.
At 10K OCI? Every modern engine?
10K is standard now
Maybe where you come from, but out here even the State mandates 6K changes. I do 5K. None of my friends or business acquaintances do anything longer than 7,500 ...
As far as seeing engines w/o cross hatch, I've seen a lot of them with 1/16 ridge, 0.040 taper, etc.
I believe you are confused.
http://www.calrecycle.ca.gov/UsedOil/OilChange/
There is no mandate it is just an effort to educated the public that 3K OCI's are a thing of the past. Even in the 50's Chrysler had a OCI recommendation of 5K. The biggest opposition to this ad campaign is jiffy lube and dealerships. I have even read an article were a Chrysler service manager stated that 3.5K should be the recommended interval because it is normal for a new vehicle to consume 1 or 2 quarts of oil in 2,000 miles.