Recent content by ihookem1

Well, after running my 05 Duramax for 10k on the Shell Rotella, and then another 10k on another batch of Shell Rotella ( yellow bottle, not synthetic) I went with the oil change indicator on the truck. Hard to believe YA can go 10k on 10qts. of oil. I went back to Amsoil series 3000 5w30 hdd...

AN 05 GMC diesel with 6.6 Duramax. However I didn't go with Amsoil this time. I went with Shell Rottella 3 ( yellow can) I figure the UOA cost almost the same as 10qts. of Shell oil. I will see how long the computer tells me to run the oil then decide if Amsoil series 3000 is worth it anymore...

I know the impact would be huge. Half the oil gets dumped into the water system. I don't know why we don't go 5k minimum , 7 k avr. and maybe even 20k synthetic with filter changes.

Free oil was a stunt. There will be no change in oil prices cause they will replace one shluck with another shluck.

I went 46k. That's my longest oci. After that it was 39k, after that it was 25k. The truck runs perfect.

Still going strong. I dumped my Amsoil @ 25k and went with Shell Rotella T3 10W30. I could not get time to my Amsoil dealer so went with what was on the shelf at the store. Besides An oil test is the same cost as 10 Qts of Shell Rotella. It burns almost no oil to this day. It has 190k on it now...

Ya know dnewton those are good questions that seem to vary a lot. Some say the oil is junk when the TAN is twice what the TBN is. I don't know so I just watch the UOA. When they start to flag anything I change the oil. Like last time when I had 39k on the oil the oxidation was flagged as a...

ON the uoa diesel section I just posted a uoa for Amsoil HDD 5w30 with 13.5k on the oil. The thread is 46k on Amsoil 5w30 oil. I have been keeping track on the thread for over 100k mi. now for anyone that cares to see, especially the O.P.

A buck a qt. more will get you Amsoil HDD 5w30 . Not that I care but 15 w was hard on my little tractor in the winter. The 5w30 made it turn over much better. The 15w was not synthetic however.

Original poster here. I got my uoa back. It has 13,500 mi. on oil. 188k on the motor still does not burn much oil, about 1qt. in 6-7k. iron 21 cronium 21 lead 4 copper 8 tin 1 al 2 silver 1 nickel 1 silicon 9 sodium 8 pot 25 water .05 coolant 0 vis. 11.5 fuel 1 % soot 1 TBN 8.1 TAN 2.7 Oil...

You can see read my experiences on the Amsoil HDD 5w30 series 3000 oil in the diesel oil analysis. It is under 46k on oil change. Go back a few pages and you will find it By the way, I just sent in an oil test but no report yet. The engine has 178k on it. It burned 2 qts. in 13,500 miles since...

O.P. here again. I have 164k on my truck now and just changed the oil again. It had 39k when the test went in. The UOA said everything was fine except it had an oxidation of 58. It was high but not critical. iron 51 alum 7 copper 20 lead 7 tin 3 silicon 12 sodium 6 potasium 5 moly 4 soot.1%...

Thanks Addyguy, you know this is just an experiment to some degree on how often do you NEED to change your oil. At first it was very hard to trust science, but now that I have 145k on it and is still not showing any real signs of wear I feel much more at ease going with extended drains. I will...

I had a K&N in my Durmax. I had a dirty MAf sensor too. I asked what makes it dirty? My mech said most of the time there is a problem there is also a K&N filter in it. No problems since. Coincidence ? maybe.

I use Amsoil 3000 5w30 @ 8 bucks a qt. and your numbers are as good as mine. Same motor but in an 05. Except I never had copper near that high.