How much oil do you use?
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Senior User
Joined: Feb 2015
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How much oil do you use?
Mine is a '94 crew cab dually, 5 spd with factory turbo. 157k miles. 4.10 gears. It screams at 75-80mph. I use about a quart every 1k miles. Mine gets driven pretty hard, sees 1200 degree egts regularly and 15psi. Pump turned up 3 flats. I like to get where i am going, trailer or not. What kind of consumption are you folks seeing and what are your driving habits?
Posting Guru
Joined: Feb 2015
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From: NW WA
I've noticed that if i fill it to the top of the hashmarks on my F350 it'll go down to the halfway mark pretty quickly. But once there it doesn't drop anymore. My F250 seems to go through a couple of quarts every 5k. But it has alot of miles (over 507k)
i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
my 88 with 494k miles on it LEAKS around 1 gt every 400-500 miles.
when i pull the cab and nose i am resealing the engine. then it should go back up to the 1 qt every 3k miles like it used to use.
when i pull the cab and nose i am resealing the engine. then it should go back up to the 1 qt every 3k miles like it used to use.
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Joined: Mar 2013
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From: Agassiz, BC Canada
I typically end up putting in 2-3 quarts per 8000km oil change interval if I want to keep it right up on the dipstick. It does seem to use oil a little slower once it gets down past the halfway mark but I don't usually run it any lower than that.
Fleet Mechanic
Joined: Oct 2012
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I add 1-2 quarts inbetween 5k mile oil changes. Usually about the 3.5k mile mark. Not sure how much is burnt and how much leaks out the corner of my valve covers.
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Posting Guru
Joined: Jan 2001
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From: Poway, CA
Hardly any, knock on wood. I usually don't add any between changes, half a quart if anything. 5K interval changes using Delo 400 (15W-40).
Mike
Mike
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Before I had it rebuilt, probably 1-2qt every few hundred miles.
Now, well, I'd say approximately nothing(<1qt every oil change), but it's only had a few K on it since rebuilding.
Part of this is due to my rebuilder tightening the ring gaps up; stock the ring gaps are huge(Like .080 on one of the rings). He tightened them to <.010; I forget the numbers. It definitely makes for a cleaner, less oil using engine.
Oh, and I've got a turbo, RD2-110 pump etc.... but for now, I'm not leaking oil(crosses fingers).
Now, well, I'd say approximately nothing(<1qt every oil change), but it's only had a few K on it since rebuilding.
Part of this is due to my rebuilder tightening the ring gaps up; stock the ring gaps are huge(Like .080 on one of the rings). He tightened them to <.010; I forget the numbers. It definitely makes for a cleaner, less oil using engine.
Oh, and I've got a turbo, RD2-110 pump etc.... but for now, I'm not leaking oil(crosses fingers).
Senior User
Joined: Feb 2013
Posts: 273
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From: California
I change my oil every 3k miles, and I never have to top up the oil. The level on the dipstick never changes.
The only time I've seen it consume any oil is when I overfilled it by 1-1.5 quarts. It didn't take long for it to drink the extra oil, but it stopped right at the full mark.
The only time I've seen it consume any oil is when I overfilled it by 1-1.5 quarts. It didn't take long for it to drink the extra oil, but it stopped right at the full mark.
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Fleet Owner
Joined: Jul 2006
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From: Mi'kma'ki
99.9% of us no doubt are using 40W oil.i did try amsoils 30W once but it drank it like crazy so i went back to mobil1.
i ain't rite
Joined: Mar 2005
Posts: 65,631
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From: Marlboro Mental Hospital.
same here. Valvoline 15 -40 all fleet in everything i own for the past 35 years.
NAPA all fleet is the same thing, Valvoline makes it and puts it in NAPA bottles for NAPA store sales.
NAPA all fleet is the same thing, Valvoline makes it and puts it in NAPA bottles for NAPA store sales.