Oil Filter
Elder User
Joined: Aug 2007
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From: arizona
Actually, there is stuff on bitog showing that filters actually filter better with more mileage. Me personally, I do it with every oil change because of the peace of mind.
I think one of the big reasons oil breaks down is because the active additive (TBN) gets depleted, the oils ability to control wear becomes shot and the viscosity drops. Just my opinion, not positive on this.
I think one of the big reasons oil breaks down is because the active additive (TBN) gets depleted, the oils ability to control wear becomes shot and the viscosity drops. Just my opinion, not positive on this.
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,602
Likes: 148
From: SE Georgia
the quality of the oil reduces because of 2 things. heat and particulates. heat causes the oil to break down on a molecular level...and of course crap in the oil just speeds things up.
you should see the stuff we do in the Navy to keep oil good. I was on my ship for 5 years, and we were still running oil in some stuff that was there before I showed up. alot of that machinery ran for 10 months at a time without a pause
keep the temps right and properly clean/filter the oil, and it will last indefinetely. it's harder for gas engines though because of the various ways crap can get into the oil (piston leak-by, valve covers, condensation)
you should see the stuff we do in the Navy to keep oil good. I was on my ship for 5 years, and we were still running oil in some stuff that was there before I showed up. alot of that machinery ran for 10 months at a time without a pause
keep the temps right and properly clean/filter the oil, and it will last indefinetely. it's harder for gas engines though because of the various ways crap can get into the oil (piston leak-by, valve covers, condensation)
Posting Guru
Joined: Oct 2003
Posts: 1,332
Likes: 4
From: Baltimore
My manual says to run either E85 or gas and not to delute one with the other. It also has a different oci if you use E85. Maybe they use a different manual depending on the build date.
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Senior User
Joined: Apr 2008
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From: Fort Collins
Must be a build issue. Mine says I can run any combination or mixture of E85, and/or Gas. There's a probe in the tank that measures the amount of alcohol, and the fuel pump adjusts accordingly.
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Senior User
Joined: Apr 2008
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From: Fort Collins
It also says it's "RECOMMENDED"....I guess I'd use a severe duty one if I was ******* my truck, or idling for hours in the summer...
It does say I can run the E85 in any combo, but that it "RECOMMENDS" running a regular tank of gas every 3000 miles...
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Senior User
Joined: Apr 2008
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From: Fort Collins
you got lucky. It took me almost 2 hours to get that POS off my truck. I did my first oil change at about 1k miles. I would have gladly paid somebody $30.
oh well, how bad was the oil at 5K?
my oil was pitch black and nasty at 1K. 21K right now and it comes out just slightly darker than it went in at every oil change...about 3K between changes
oh well, how bad was the oil at 5K?
my oil was pitch black and nasty at 1K. 21K right now and it comes out just slightly darker than it went in at every oil change...about 3K between changes
New User
Joined: May 2008
Posts: 2
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It is good to change oil filter
The blood in your body. Water in the desert. And oil in an engine. They're all vital. Without them, someone or something is going to die! Oil is an essential lubricant in your engine. It lets metal press against metal without damage. Let's say that your engine has plenty of oil, but you never change it. The two things will definitely happen: Dirt will accumulate in the oil. The filter will remove the dirt for a while, but eventually the filter will clog and the dirty oil will automatically bypass the filter through a relief valve. Dirty oil is thick and abrasive, so it causes more wear. Additives in the oil like detergents, dispersants, rust-fighters and friction reducers will wear out, so the oil won't lubricate as well as it should.
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Fleet Mechanic
Joined: Dec 2004
Posts: 1,365
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From: Ketchikan, AK.
actually, the oil will not let metal press against metal... it creates a thin film barrier so they in fact dont rub. thats why the oil needs to be clean, otherwise dirty oil would have the same affect as metal on metal, just not as fast. that is why one of the worst things we can do to our engines is start them, since there is no oil covering the parts at that point....
and as tylus pointed out, in the military we run things for months on end, due to proper operting conditions. in the Coast Guard, we have pre-lube pumps on most all of our larger machinery to provide the adequate lubrication to prevent the metal on metal during startup. we also use Spinner systems which work amazing. its incredible how much carbon can be removed from the oil, to extend its life.
if our passenger vehicles had this equipment installed, then im sure they would go MUCH longer on each oil change.
and as tylus pointed out, in the military we run things for months on end, due to proper operting conditions. in the Coast Guard, we have pre-lube pumps on most all of our larger machinery to provide the adequate lubrication to prevent the metal on metal during startup. we also use Spinner systems which work amazing. its incredible how much carbon can be removed from the oil, to extend its life.
if our passenger vehicles had this equipment installed, then im sure they would go MUCH longer on each oil change.
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Senior User
Joined: Apr 2008
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From: Fort Collins
The blood in your body. Water in the desert. And oil in an engine. They're all vital. Without them, someone or something is going to die! Oil is an essential lubricant in your engine. It lets metal press against metal without damage. Let's say that your engine has plenty of oil, but you never change it. The two things will definitely happen: Dirt will accumulate in the oil. The filter will remove the dirt for a while, but eventually the filter will clog and the dirty oil will automatically bypass the filter through a relief valve. Dirty oil is thick and abrasive, so it causes more wear. Additives in the oil like detergents, dispersants, rust-fighters and friction reducers will wear out, so the oil won't lubricate as well as it should.
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Senior User
Joined: Apr 2008
Posts: 411
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From: Fort Collins
actually, the oil will not let metal press against metal... it creates a thin film barrier so they in fact dont rub. thats why the oil needs to be clean, otherwise dirty oil would have the same affect as metal on metal, just not as fast. that is why one of the worst things we can do to our engines is start them, since there is no oil covering the parts at that point....
and as tylus pointed out, in the military we run things for months on end, due to proper operting conditions. in the Coast Guard, we have pre-lube pumps on most all of our larger machinery to provide the adequate lubrication to prevent the metal on metal during startup. we also use Spinner systems which work amazing. its incredible how much carbon can be removed from the oil, to extend its life.
if our passenger vehicles had this equipment installed, then im sure they would go MUCH longer on each oil change.
and as tylus pointed out, in the military we run things for months on end, due to proper operting conditions. in the Coast Guard, we have pre-lube pumps on most all of our larger machinery to provide the adequate lubrication to prevent the metal on metal during startup. we also use Spinner systems which work amazing. its incredible how much carbon can be removed from the oil, to extend its life.
if our passenger vehicles had this equipment installed, then im sure they would go MUCH longer on each oil change.
Post Fiend
Joined: Nov 2001
Posts: 7,698
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From: Neenah, Wisconsin
Oil changes at 3000 miles is a scam these days.....go send in your oil for analysis (there are companies that do this for you) and you'll see you can easily go 5000 miles or more on semi syn oils. Engines are built much better with better tolerances today and this allows the oils to go far longer than they used to....me personally...motorcraft semi-syn every 5000 miles
New User
Joined: May 2008
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Oil changes at 3000 miles
Oil changes at 3000 miles is a scam these days.....go send in your oil for analysis (there are companies that do this for you) and you'll see you can easily go 5000 miles or more on semi syn oils. Engines are built much better with better tolerances today and this allows the oils to go far longer than they used to....me personally...motorcraft semi-syn every 5000 miles
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