Oil burning?
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Mountain Pass
Joined: Jun 2016
Posts: 214
Likes: 25
Oil burning?
Just got back from our 5000 mile camping trip last week, and changed the oil. Since the truck never gets a lot of miles except towing, I never have a real clear baseline to judge oil consumption. This time seemed worse. When we got home, I noticed that the oil barely registered on the dipstick, and after draining it didn't even fill a 5 quart jug. Maybe like 4 1/2? But it still did register on the dipstick, so I'm concerned that isn't accurate. I use Mobil 1 5W20 high mileage. Engine has 190,000 miles on it, 2002 6.8. No smoke at any time, no leaks, no noises. I've read this is probably normal, and heavy towing (~10,000 lb. TT) about 4500 of those 5000 miles didn't help it I'm sure. I've never been one to use additives in my oil, but would a different grade / brand cut down on the oil consumption? I mean, I'm not real concerned about it, I've owned big blocks that have been set up 'loose' that take a quart in 500 miles and ran great, but if there's something out there that works better for oil I'm game to try it.
Tuned
Joined: Sep 2019
Posts: 418
Likes: 4
From: Tacoma, WA
Just got back from our 5000 mile camping trip last week, and changed the oil. Since the truck never gets a lot of miles except towing, I never have a real clear baseline to judge oil consumption. This time seemed worse. When we got home, I noticed that the oil barely registered on the dipstick, and after draining it didn't even fill a 5 quart jug. Maybe like 4 1/2? But it still did register on the dipstick, so I'm concerned that isn't accurate. I use Mobil 1 5W20 high mileage. Engine has 190,000 miles on it, 2002 6.8. No smoke at any time, no leaks, no noises. I've read this is probably normal, and heavy towing (~10,000 lb. TT) about 4500 of those 5000 miles didn't help it I'm sure. I've never been one to use additives in my oil, but would a different grade / brand cut down on the oil consumption? I mean, I'm not real concerned about it, I've owned big blocks that have been set up 'loose' that take a quart in 500 miles and ran great, but if there's something out there that works better for oil I'm game to try it.
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Cross-Country
Joined: Nov 2017
Posts: 98
Likes: 19
Just got back from our 5000 mile camping trip last week, and changed the oil. Since the truck never gets a lot of miles except towing, I never have a real clear baseline to judge oil consumption. This time seemed worse. When we got home, I noticed that the oil barely registered on the dipstick, and after draining it didn't even fill a 5 quart jug. Maybe like 4 1/2? But it still did register on the dipstick, so I'm concerned that isn't accurate. I use Mobil 1 5W20 high mileage. Engine has 190,000 miles on it, 2002 6.8. No smoke at any time, no leaks, no noises. I've read this is probably normal, and heavy towing (~10,000 lb. TT) about 4500 of those 5000 miles didn't help it I'm sure. I've never been one to use additives in my oil, but would a different grade / brand cut down on the oil consumption? I mean, I'm not real concerned about it, I've owned big blocks that have been set up 'loose' that take a quart in 500 miles and ran great, but if there's something out there that works better for oil I'm game to try it.
PCV Valve and Hoses are fresh.
Last edited by Cocky EX; Jul 21, 2020 at 10:06 PM. Reason: Add comment
Laughing Gas
Joined: May 2011
Posts: 855
Likes: 40
From: SoCal
Man what a testimony to the ruggedness of the cast iron 6.8. Folks complaining that their 200,000 mile engines are using a little oil now. Mind you these engines are gainfully deployed doing what they were designed to do. The legacy of the legendary side-oiler FE engine.
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Mountain Pass
Joined: Jun 2016
Posts: 214
Likes: 25
It is an awesome engine. Does everything it's ever been asked to do. I've never gotten the impression that I'm pushing it past its limits. Just wish it would have come with a better transmission. Maybe the new Godzilla is its legacy.
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