SuzukiSavage.com - Upper cylinder lubricant.

Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Upper cylinder lubricant. Reply #15 - 03/19/16 at 10:50:02 jcstokes wrote on 03/19/16 at 01:25:59: The Diesel theory was tried by some antique car enthusiasts here, not so much as upper cylinder lube, but to cut down the octane rating/AKI index of the current fuels in NZ, this idea is out of fashion. Why would you want to lower the octane?
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Re: Upper cylinder lubricant.
Reply #16 - 03/19/16 at 11:27:09

My main thought is to lubricate the throttle shaft and coat the steel parts inside the carb to prevent corrosion. I've seen pictures of corrosion on the screws and plate that hold the needle in place, for one, and a bit of lube on the slide doesn't seem like a bad idea.

In turbine engines Jet A lubricates the, extremely expensive, fuel controller, and Diesel of course does the same for the injector pump.
I've always thought that a poor gasoline carb is starved for lubricant.

On of the reasons I bought a Savage is because of the carb. My Triumph Bonneville is the same. Even a dumb gorilla like myself can maintain them.

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DesertRat Serious Thumper Offline I love rat bikes! Posts: 1569 Arizona	Re: Upper cylinder lubricant. Reply #17 - 03/19/16 at 12:14:35 Diesels are a different animal. The fuels contain waxes that aid in lubrication along side of the normal oil lubrication systems.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Upper cylinder lubricant. Reply #18 - 03/19/16 at 12:53:48 I'm curious,too. Why would you want to lower the octane? Back to top
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pg Serious Thumper Offline Posts: 5273 In Transit	Re: Upper cylinder lubricant. Reply #19 - 03/19/16 at 14:29:08 Perhaps a more simple reliable engine at the expense of performance. Kinda sounds like a savage. Best regards,
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pg Serious Thumper Offline Posts: 5273 In Transit	Re: Upper cylinder lubricant. Reply #20 - 03/19/16 at 14:32:48 Incidentally, I use Lucas upper end lubricant. It doesn't do wonders but, I do get better gas millage. Best regards,
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gizzo Serious Thumper Offline SuzukiCabbage. It's Savage. Posts: 1318 Australia	Re: Upper cylinder lubricant. Reply #21 - 03/19/16 at 22:53:20 My upper cylinder is lubricated by the lower cylinder lubricant sneaking past the tired rings
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Art Webb Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3007 columbus, Texas Gender:	Re: Upper cylinder lubricant. Reply #22 - 03/20/16 at 08:34:00 We used to run Diesel at 1 gallon to 10 gallons of gas to clean fuel systems on older cars (diesel fuel is a great engine parts cleaner) for 1 tank about every oil change With injected cars it's not helpful Marvel Mystery oil will not hurt your engine provided you don't overuse it, dunno if it'll help any, though
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Re: Upper cylinder lubricant.
Reply #23 - 03/20/16 at 09:33:45

Never and I repeat never add diesel to gasoline , don't do it ! Raises cylinder temp. well beyond a safe condition. It's the same as the guy with a 2 stroke that think his bike is lean then adds more premix oil to fuel to make up for it. More oil in fuel reduces ratio of fuel which causes a lean condition raising cylinder temp. Compounded by the chemical composition of when diesel is added to gas it burns WAY hotter the just gas. So if you like melted Pistons & engine rebuilds have at it , you have been warned !

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Upper cylinder lubricant. Reply #24 - 03/20/16 at 12:11:42 Wow! I've never heard that a bit of diesel would hurt a gasoline engine. I've done it many times. I'm talking about something like a pint in a tank,on the truck, or a capfull in the bike. And, the point about how hot it is, makes sense. Diesel fuel contains more BTUs per gallon than gas.
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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Upper cylinder lubricant. Reply #25 - 03/20/16 at 12:16:06 Hmmm, good tip!
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Re: Upper cylinder lubricant.
Reply #26 - 03/20/16 at 17:46:24

justin_o_guy2 wrote on 03/20/16 at 12:11:42:

Wow! I've never heard that a bit of diesel would hurt a gasoline engine. I've done it many times. I'm talking about something like a pint in a tank,on the truck, or a capfull in the bike.
And, the point about how hot it is, makes sense.
Diesel fuel contains more BTUs per gallon than gas.

It was not uncommon for old Porsche 356 engines to get carboned up, and the carbon would make the engines run poorly...as the carbon would bump up an already high compression ratio. It was common for folks to add diesel fuel to clean out the built up carbon. They were warned however, that diesel fuel in the gas would lower the octane rating of the gasoline, and light throttle and slower speeds were required until they used up the fuel and got rid of the diesel in the tank.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Upper cylinder lubricant. Reply #27 - 03/20/16 at 17:56:15 All these years,,, wow, What percentage are we talking about, when it gets dangerous.
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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Upper cylinder lubricant. Reply #28 - 03/20/16 at 18:24:28 Diesel pump nozzles are too big to fit into a gas tank. That's to keep people from putting the wrong fuel in your vehicle! Diesel used to be cheaper than gas ya know! However, a smaller gas nozzle will fit into a diesel tank. There might be a problem here!
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Re: Upper cylinder lubricant.
Reply #29 - 03/21/16 at 09:41:18

I used the 1 gallon of diesel to 10 gallons of gas many times, no problem ever, much less melted pistons, etc
now running 1/2 n 1/2 would probably cause problems, and doing it all the time would likely cause problems, but it was a 1 /10 (up to 1/20) once an oil change
Kris, most 1975 and earlier auto gas tanks will accept a diesel nozzle easily, the smaller fill neck was initiated when unleaded gas was introduced, to keep the newer cars from being fueled with leaded gas, which kills catalysts, not really to keep us from putting diesel in, it was done due to EPA regs
us idiots that buy the cars, they could care less if we kill our cars through stupidity

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