Originally posted by BillGotthelf
I put the series 3000 synthetic in at 15,000 miles and put the same in trans at 20,000. I have a 96 L-8000 dump with a Cummins 8. 3 275hp motor. It now has 618,000 miles and I have never changed the oil since 15,000. Oil tests indicate the Amsoil is within specs to keep using. It might be the bypass filter works good too.![]()
Originally posted by RowJ
I did do oil analysis the first 3 changes (tried 5,000; 10,000; and 12,500 miles) That's how I came up with the recommendation for 10,000. I don't tow but haul up to 9,000 lbs regularly.
I still do O. A. every 6 months or so to check for coolant etc. in the oil. Because of clearing out the system @ 10,000 I know there isn't a lot of crap that can accumulate.
Anyone who wants to do Oil Analysis every time is ok with me-but my expirience with customers is - most don't have (or make) the time.
Also, I have a small problem with having oil analysis done by the manufacturer of the oil I'm using. Call me suspicious but it opens the door for a possible conflict of interest.
$17. 00 from Amsoil sounds high! I use Cleveland Tech -a national laboratory. Got 10 prepaid kits last July (incl TBN) for $120. 00.
I have cut open more than my share of "good" oil filters, and know I have miles to spare with my Baldwins at 10,000 miles. That is, unless I hit a dust storm in west Texas!
Originally posted by nwcatman
let me ask this, has anyone been denied a warranty claim due to the fact they were using amsoil? or any good synthetic.
Originally posted by ACerf
. I have to admit I do use Dura-Blend in my cars. But that is only 30% Synthetic blend.
Also, I have a small problem with having oil analysis done by the manufacturer of the oil I'm using. Call me suspicious but it opens the door for a possible conflict of interest.
Which I noticed Amsoil brought out ther 7,500 Mile oil, which I believe is a blend.
NEW VEHICLE UNDER WARRANTY
The use of AMSOIL Synthetic Synthetic Heavy-Duty Diesel and Marine Motor Oil will not void new vehicle warranties. New vehicle warranties are based on the use of oils meeting specific API service classifications and SAE viscosity grades. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil meets the current API and SAE requirements and is perfectly suited for use in any new vehicle stipulating those requirements in its owner's manual.