Oil changes
Oil changes
Trending Topics
Registered User
Joined: Dec 2003
Posts: 14,672
Likes: 9
From: Montana
We have oil analysis equipment at work. I did tests on Delo 15w-40 every thousand miles up to 15k, oil was still good to go at 15k. I change at around 10k.
You guys changing at 3k or even 5k are wasting your money. Dirty looking oil doesn't mean anything, it's just the nature of the diesel beast.
Even on older rigs where 5k regular and 3k severe use was recommended it doesn't apply any more because motor oil properties have changed tremendously in recent years and continue to change.
Cummins isn't about to retest engines to change a couple lines in the book.
The oil industry is striving for a dino oil that will go 25k or once a year in any rig, should be available in a year or so.
You guys changing at 3k or even 5k are wasting your money. Dirty looking oil doesn't mean anything, it's just the nature of the diesel beast.
Even on older rigs where 5k regular and 3k severe use was recommended it doesn't apply any more because motor oil properties have changed tremendously in recent years and continue to change.
Cummins isn't about to retest engines to change a couple lines in the book.
The oil industry is striving for a dino oil that will go 25k or once a year in any rig, should be available in a year or so.
Banned
Joined: Jan 2004
Posts: 2,800
Likes: 0
I change mine when I notice oil pressure dropping slightly...
it's unscientific I know, and like I said, I'm planning a bypass filtration system, but for now, I'd rather change too often than not enough. I still make 70psi of oil pressure cruising down the highway, so whatever I've been doing has been working.
215 pump, 370 injectors, AFC housing/wheel full forward, flat plate WAY forward, and a pig of a turbo that doesn't really start happening till 2000rpm = LOTS of smoke.
Forrest
it's unscientific I know, and like I said, I'm planning a bypass filtration system, but for now, I'd rather change too often than not enough. I still make 70psi of oil pressure cruising down the highway, so whatever I've been doing has been working.
215 pump, 370 injectors, AFC housing/wheel full forward, flat plate WAY forward, and a pig of a turbo that doesn't really start happening till 2000rpm = LOTS of smoke.
Forrest
Chapter President
Joined: Nov 2002
Posts: 1,190
Likes: 0
From: Waynesboro Ga ...Haul custom Motorcycles
10,000 miles with oil sampling.....never even use 1 quart of oil between changes
I screwed up last oil change.....I never changed oil.....went 20,000 miles but the oil sample was good
Oil and Filters are cheap preventative maintenance.....but oil samples give you details about whats happening inside the motor.....many times with a oil sample history you'll see a problem before it happens
I screwed up last oil change.....I never changed oil.....went 20,000 miles but the oil sample was good
Oil and Filters are cheap preventative maintenance.....but oil samples give you details about whats happening inside the motor.....many times with a oil sample history you'll see a problem before it happens
Registered User
Joined: Dec 2002
Posts: 268
Likes: 0
From: Brentwood, CA - Dallas, Tx
Ya 3000k would be way to soon. 10k mile mark is when she gets new oil and filter. Oil sampling confirms that it's good to go and you know how well your engine is operating.
-CM
-CM
Registered User
Joined: Jul 2003
Posts: 7,129
Likes: 0
From: The Great White North
Originally posted by infidel
We have oil analysis equipment at work. I did tests on Delo 15w-40 every thousand miles up to 15k, oil was still good to go at 15k. I change at around 10k.
You guys changing at 3k or even 5k are wasting your money. Dirty looking oil doesn't mean anything, it's just the nature of the diesel beast.
Even on older rigs where 5k regular and 3k severe use was recommended it doesn't apply any more because motor oil properties have changed tremendously in recent years and continue to change.
Cummins isn't about to retest engines to change a couple lines in the book.
The oil industry is striving for a dino oil that will go 25k or once a year in any rig, should be available in a year or so.
We have oil analysis equipment at work. I did tests on Delo 15w-40 every thousand miles up to 15k, oil was still good to go at 15k. I change at around 10k.
You guys changing at 3k or even 5k are wasting your money. Dirty looking oil doesn't mean anything, it's just the nature of the diesel beast.
Even on older rigs where 5k regular and 3k severe use was recommended it doesn't apply any more because motor oil properties have changed tremendously in recent years and continue to change.
Cummins isn't about to retest engines to change a couple lines in the book.
The oil industry is striving for a dino oil that will go 25k or once a year in any rig, should be available in a year or so.
It seem like the guys changing at 3k are really wasting their money.
Chapter President
Joined: Jan 2004
Posts: 414
Likes: 0
From: Glendale AZ
I have always changed at 3K, but am open for the debate. I have ordered my test kit for the oil and will be curious to see what they are testing for and what the numbers equate to. The test looks pretty cheap and it will be interesting to see the results.
Sorry for the thread theft, now back to our regularly scheduled posts...
Sorry for the thread theft, now back to our regularly scheduled posts...
