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Look at Ford,engines that have been around for years that at one time reqired a 10W-30 now reqire a 5W-20.
Have the engines really changed that much or is it government regulation?
The point I am making is that oil may not have the additives that are really needed in the amount really needed.
The government is the one pushing CAFE.
Repeated UOA's, on this board and others, have shown 5w20 oils to provide EXCELLENT engine protection. Going farther, repeated UOA's of standard conventional oils have shown EXCELLENT results. <--- FACT.
Some metals, like Zinc Dialkyldithiophosphate, and some Moly compounds, function to provide barrier lubrication, preventing wear. They are not intended to "fill in the gaps". There is a difference here. Personally, I do not want an oil to fill in gaps. Some gaps are there for a reason, like in lifters.
With gasoline at $2.259 here this afternoon, I'm all for CAFE. I'm for all the fuel economy I can get.
Repeated UOA's, on this board and others, have shown 5w20 oils to provide EXCELLENT engine protection. Going farther, repeated UOA's of standard conventional oils have shown EXCELLENT results. <--- FACT.
Some metals, like Zinc Dialkyldithiophosphate, and some Moly compounds, function to provide barrier lubrication, preventing wear. They are not intended to "fill in the gaps". There is a difference here. Personally, I do not want an oil to fill in gaps. Some gaps are there for a reason, like in lifters.
With gasoline at $2.259 here this afternoon, I'm all for CAFE. I'm for all the fuel economy I can get.
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I agree. But others insist on using thick, slow pumping, 10w40, 15w40, 20w50 conventional and diesel oil, that make an engine work harder, not better. Harder = reduced MPG @ $2.25 ++ for a gallon of gasoline.
There are good reasons for todays engine oils NOT having solid lubricants in them, a number of which have been noted. Anyone remember things like "Motor Mica", "Motor Molly", "Arco Graphite", "Slick-50 with Teflon, ect, ect, all of which miracle additaves were in SOLID form & all of which would precipitate out after engine shut down & cause all sorts of unkindly things to happen to the engines innards LOL???? So my point here is, this idea of adding solids to engine oil isn't a NEW idea, just a BAD one, that folks keep dredging up from the past. They then add a different "miracle lubricant", attach & SELL you the same faulty logic to it's use & benifits!!!! Doesn't anyone RECOGNIZE their pattern of faulty logic here????
Last edited by pawpaw; Aug 9, 2005 at 09:30 AM.
Reason: Spelling Corrections
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I agree. But others insist on using thick, slow pumping, 10w40, 15w40, 20w50 conventional and diesel oil, that make an engine work harder, not better. Harder = reduced MPG @ $2.25 ++ for a gallon of gasoline.
This is true. I use 10w30 diesel rated oil in my FE motor to protect it's flat tappet cam, and 15w40 diesel rated in my '92 Explorer to quiet down a piston slap issue (210,000 miles...), until it can be fixed. But if you have a motor that Ford now recommends 5w20 for, by all means, use it, unless your motor is old, worn out, and in need of a rebuild like mine.
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