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#11
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Marvel Mystery Oil
On 27 Jan 2006 10:51:09 -0800, "butch burton" >
wrote: >At least one of the major car companies - DC I think sez in the owners >manual that using crank case additives will void the warranty. Back in >the days of lose engines - a increase in viscosity may have been a good >thing - not today - will probably impede lubrication. Actually, I think MMO would probably decrease the viscosity of the oil, and I wouldn't want to do that either. MMO is an old product. If it had any extraordinary benefits as a crankcase additive, its components would have been incorporated into motor oils long ago. That said, I have seen it recommended for various general and special lubrication purposes. It is probably a very fine light-weight, general purpose lubricating oil, but it is neither marvelous or mysterious. |
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#12
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Marvel Mystery Oil
"butch burton" > wrote in
oups.com: > At least one of the major car companies - DC I think sez in the owners > manual that using crank case additives will void the warranty. Back in > the days of lose engines - a increase in viscosity may have been a good > thing And when was this day of "lose" engines? -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#13
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Marvel Mystery Oil
On 27 Jan 2006 23:38:20 GMT, "TeGGeR®" > wrote:
wrote in roups.com: > >> Start saving up money... to buy a new catalytic converter. >> >> The whole concept of marvel oil is a little bogus. Gasoline already >> has a lot of oily components in it, and that is what lubes the upper >> cylinders well enough for engines to last 300,000+ miles. >> >> Now check out Brazil, which insisted on developing ethanol production >> to replace gasoline use. Result is, engines don't last at all. The >> alcohol has no lube qualities, and the engine is toast. >> >> > > > >You are full of bovine fecal matter. Gasoline is a SOLVENT, NOT a >lubricant. It washes motor oils off the bore walls. > >Gasoline does have a touch of light machine oil in it, but that's for the >injectors, not the bores. I don't know. Gasoline may not be as good a lubricant as oil but I can see how it would be a lot better than ethanol. Not saying that he's right, but it isn't implausible IMO. Do Brazilian liquor burners really go through engines like a drunken sailor? I hear they are still selling well and by now everyone would know it if they were self destructing. I couldn't find anything on the web about it either. |
#14
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Marvel Mystery Oil
On 2006-01-28, TWW > wrote:
> They still make that -- shades of JC Whitney.... Hey, don't knock JC Whitney. They've saved my butt more than once. An example was replacing the aluminized batt insulation in a '69 Dodge van engine box (the one between the seats) I once owned. I looked everywhere. Dodge dealers, Autoshops, boat centers, RV centers, custom shops, you name it. After 2 weeks I was at my wits end. My buddy suggested I look in JC Whitney . Sure enough, twice as much as I needed for $30, including shipping. JC Whitney is alright. http://www.jcwhitney.com/autoparts/S...-10101/s-10101 nb |
#15
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Marvel Mystery Oil
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#16
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Marvel Mystery Oil
> You are full of bovine fecal matter. Gasoline is a SOLVENT, NOT a
> lubricant. It washes motor oils off the bore walls. I specifically said UPPER CYLINDER WALLS. Sure, it would be better to have some 10W30 up there, but it isn't really happening. Solvent, lube, whatever. Don't get hung up on labels. Did you take organic chemistry 30 years ago like I did? There's a lot of oily in gasoline, and it isn't due to any additive. My wife has two relatives doing an extended project in Brazil right now, and they'll agree with me regarding engine longevity. |
#18
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Marvel Mystery Oil
shawn > wrote in
: > On 28 Jan 2006 02:00:59 GMT, "TeGGeR®" > wrote: > >>"butch burton" > wrote in groups.com: >> >>> At least one of the major car companies - DC I think sez in the owners >>> manual that using crank case additives will void the warranty. Back in >>> the days of lose engines - a increase in viscosity may have been a good >>> thing >> >> >> >>And when was this day of "lose" engines? > > I would guess back in 70s and earlier. Tolerances on the parts going > into engines have gotten much tighter over the years. Hmmm... Some examples: 2003 Acura RSX crank journal to bearing clearance: .0007"-.0020" 1991 Honda B18A1 crank journal to bearing clearance: .0009"-.0020" 1975 Toyota 2T-C crank journal to bearing clearance: .0006"-.0039" 1956 Chevrolet six or V8 crank journal to bearing clearance: .0007"-.0028". The tight tolerance is essentially the same from 1956 to 2003, but the older engines were permitted to get a lot looser before being considered out-of-spec. I'd suspect metallurgy is a lot better now, so they can afford to specify tighter tolerances and still get adequate life out of the engine. Also, oils back in 1956 or 1975 were not what they are now. Sort of with poyethylene, back then you had to make it thick to get the film strength. Now they can do it by making the polymer chains longer and stronger. I think that and metallurgy have more to do with the lightness of modern oils than viscosity requirements. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#19
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Marvel Mystery Oil
"TeGGeR®" > wrote in
: > shawn > wrote in > : > >> On 28 Jan 2006 02:00:59 GMT, "TeGGeR®" > wrote: >> >>>"butch burton" > wrote in egroups.com: >>> >>>> At least one of the major car companies - DC I think sez in the >>>> owners manual that using crank case additives will void the >>>> warranty. Back in the days of lose engines - a increase in >>>> viscosity may have been a good thing >>> >>> >>> >>>And when was this day of "lose" engines? >> >> I would guess back in 70s and earlier. Tolerances on the parts going >> into engines have gotten much tighter over the years. > > > > Hmmm... Some examples: > 2003 Acura RSX crank journal to bearing clearance: .0007"-.0020" > 1991 Honda B18A1 crank journal to bearing clearance: .0009"-.0020" > 1975 Toyota 2T-C crank journal to bearing clearance: .0006"-.0039" > 1956 Chevrolet six or V8 crank journal to bearing clearance: > .0007"-.0028". Another couple I just found: 1970 Ford 302 V8 crank journal to bearing clearance: .0005"-.0024" 1970 Ford 250 six crank journal to bearing clearance: .0005"-.0022" I'm not sure those old engines were much looser than modern ones. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#20
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Marvel Mystery Oil
"TeGGeR®" > wrote in
: >> 1975 Toyota 2T-C crank journal to bearing clearance: .0006"-.0039" Oops. This is for the smaller 3K engine. the 2T clearances we ..0013"-.0022", only slightly bigger max than the '02 RSX. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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