What is your oil of choice?
Diesel Bomber
Joined: Oct 2010
Posts: 1,325
Likes: 59
From: New England
Spectrometer results will tell me if it's ok or not. I wouldn't go over 5000 without solid information. A $7 test is pretty cheap if I can stretch out oil changes 2000 or more miles. I'll share my results.
My supplier says 10,000 isn't out of the question though. And he's the one selling the oil so it wouldn't make much sense for him to be less than truthful only to not sell as much product. We shall see. Should be a cool ( albeit a long) experiment.
My supplier says 10,000 isn't out of the question though. And he's the one selling the oil so it wouldn't make much sense for him to be less than truthful only to not sell as much product. We shall see. Should be a cool ( albeit a long) experiment.
Diesel Enthusiast
Joined: Aug 2013
Posts: 117
Likes: 11
From: Eastern wa
Lube Watch oil analysis for preventative maintenance- Chevron
Great way to find problems early like injector leaks, coolant, soot, silica, viscosity, etc.
Hijack over.
Great way to find problems early like injector leaks, coolant, soot, silica, viscosity, etc.
Hijack over.
Thread Starter
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Diesel Fan
Joined: Oct 2013
Posts: 38
Likes: 1
From: Nebraska
This is all good information.
Thank-you all.
Keep it coming.
Almost all good information anyway...
Haha
DD
Thank-you all.
Keep it coming.
Almost all good information anyway...
Haha
DD
Last edited by Diesel Duo; Jan 24, 2014 at 05:37 PM. Reason: information quality
Diesel Enthusiast
Joined: Oct 2013
Posts: 239
Likes: 4
From: Oklahoma
i have used royal purple 15-40 in my duramax for the last 175k mi.(281k total). I had the motor apart for 10 weeks and the oil still had everything coated. i kept wondering why my parts all looked dirty when another duramax i had tore down looked real clean and had been running rotella. I then realized that my royal purple had a coat on everything when the rotella had just run off. Thus, the royal purple prevents dry starts and i don't have to run an additive. As a side note the oil pressure has also increased approx. 10 psi.
Diesel Bomber
Joined: Jun 2010
Posts: 3,202
Likes: 143
From: Tacoma
I too run Royal Purple in bith my IDI and my Cummins trucks ..... I was genuinely amazed when I pulled the heads and hg off the ford .... SPOTLESS...... my oil pressure has also gotten better in both as well .
the ford has been running RP for 5 + years .... the dodge only about 3 months .... picked up milage on both
the ford has been running RP for 5 + years .... the dodge only about 3 months .... picked up milage on both
Diesel Fan
Joined: Jan 2014
Posts: 54
Likes: 5
2009 CUMMINS 6.7 RAM3500 4X4 DW
I use Mobil1 5 W 40 Fully Syn Turbo Diesel truck oil and Fleet Guard filters...I change it every 5000 miles...I had the waste oil tested along with a sample of the new oil the lab results were the same except for the suspended solids from the fuel and the soot...The oil is quite expensive but have you priced a new Cummins 6.7 lately...I'll continue spending the $100 on the 3 gallons of oil just for the piece of mind...
Diesel Bomber
Joined: Jun 2010
Posts: 3,202
Likes: 143
From: Tacoma
Funny you should post about the 5/40 ...... I have a few gallons for after my 12V HG job ... and thats what I plannedfor the ford too .....
should be iinteresting to see if I gain any mpg's there ....
should be iinteresting to see if I gain any mpg's there ....
Diesel Fan
Joined: Jan 2014
Posts: 54
Likes: 5
Its been below 0° in the morning here in Maryland the past few days and the truck starts and runs like Its July...My truck is a 2009 but only has 30,000 miles on it...You will be amazed how well your truck will start in cold weather if you live in that climate...
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
