Synthetic Oil

Wild one · Nov 14, 2022

HEMIMANN said:
A bit off topic - propane is the most dangerous of all......extremely low octane rating (easier combusted than gasoline), with vapor pressure similar -40F/C.

Be careful members that use it for various things (bbq, heaters, etc.). We were very nervous at work using it in spark engines - esp. finding the knock point for spark advance timing. Blew a hole in a Cummins gasified C series engine.

I always thought propane was classed as a high octane fuel,with generally around a 130 rating,but with less btu's then gasolene,and that was why you wanted to up the static compression to get the most power from it.I used to hang around a couple propane powered drag cars,and they all ran at least 13:1 static compression ratio's with pumping cylinder pressures well over 220 psi.
My dad ran propane powered tractors back in the early/mid 70's,and at -40 they wouldn't start unless you warmed the tanks up above that temp,as it basically wouldn't boil in the tanks and turn from a liquid to a gas that would flow. From what i remember from the propane classes he made me take as a teenager,propane won't boil at -40 and stays as a liquid,it has to be above those temps to boil and create any tank pressure

HEMIMANN · Nov 14, 2022

Wild one said:
I always thought propane was classed as a high octane fuel,with generally around a 130 rating,but with less btu's then gasolene,and that was why you wanted to up the static compression to get the most power from it.I used to hang around a couple propane powered drag cars,and they all ran at least 13:1 static compression ratio's with pumping cylinder pressures well over 220 psi.
My dad ran propane powered tractors back in the early/mid 70's,and at -40 they wouldn't start unless you warmed the tanks up above that temp,as it basically wouldn't boil in the tanks and turn from a liquid to a gas that would flow. From what i remember from the propane classes he made me take as a teenager,propane won't boil at -40 and stays as a liquid,it has to be above those temps to boil and create any tank pressure

Nope - you might be thinking of methane (natural gas) - believe it or not, for all the house explosions every winter, methane is very insensitive (high octane rating), and requires lots of it to get to stoich ignition. We had a helluva time starting gas engines in the subzero winter. Esp. from moisture and contaminants in the gas lines (like butane). Plus you need a lot more of it (volumetric flow rate ) to get any power out of the engine. And it's still less power than propane, of course.

Propane wants to pop way too much! Until you get to -40, of course, which is it's boiling temp, which is what you're remembering up there. Some peeps insulate their propane tanks and have an auxiliary heater on it, electric blanket, or feedback from combustion, in the -40 regions. That's what they did for our generators at the fish camps.

Wild one · Nov 14, 2022

HEMIMANN said:
Nope - you might be thinking of methane (natural gas) - believe it or not, for all the house explosions every winter, methane is very insensitive (high octane rating), and requires lots of it to get to stoich ignition. We had a helluva time starting gas engines in the subzero winter. Esp. from moisture and contaminants in the gas lines (like butane). Plus you need a lot more of it (volumetric flow rate ) to get any power out of the engine. And it's still less power than propane, of course.

Propane wants to pop way too much! Until you get to -40, of course, which is it's boiling temp, which is what you're remembering up there. Some peeps insulate their propane tanks and have an auxiliary heater on it, electric blanket, or feedback from combustion, in the -40 regions. That's what they did for our generators at the fish camps.

I thought propane was closer to 130,but it looks like it varies from 104-to 112 octane now,it was probably closer 130 back when i was a kid,as i know it's gone down a fair bit in octane since the 70's.At one point in time i was seriously contemplating using propane as the fuel enrichment on my nitrous set-ups in the 80's,but never did get around to trying it out,not only was it higher octane,it was also a hell'va cooling median for the intake charge

Alternative Fuels Data Center: Propane Vehicles

https://www.shipleyenergy.com/resources/commercial/propane-grade-quality/

Auto Propane - Canadian Propane Association

Auto propane has the lowest flammability range of all alternative motor fuels. Auto propane engines are 50% quieter than diesel, making school bus rides safer.

propane.ca

06 Dodge · Nov 15, 2022

And to think back when I was young and stupid, I use to smoke less than 10 ft from a 1000 gallon propane tank we used to refilling our forklifts tank, its a miracle thank god that I never blew my self or the place up...

Old Fart · Nov 15, 2022

06 Dodge said:
And to think back when I was young and stupid, I use to smoke less than 10 ft from a 1000 gallon propane tank we used to refilling our forklifts tank, its a miracle thank god that I never blew my self or the place up...

How about a jet-powered dragster 16 feet from a propane tank?

https://www.youtube.com/watch?v=vSv1n2xDFqE

Burla · Nov 15, 2022

Me thinks that jet needs a tune up, how does one tune up a jet? The last second of that vid, something had some blowback.

Wild one · Nov 15, 2022

Burla said:
Me thinks that jet needs a tune up, how does one tune up a jet? The last second of that vid, something had some blowback.

The guy with no shirt on,might have felt it a bit more then everybody else,lol

Burla · Nov 16, 2022

This is just wrong man?? Brushless impact gun for 57 bucks, lol?

HEMIMANN · Nov 16, 2022

Gee, I wonder where that's made?

Burla · Nov 16, 2022

Probably where they both are made, the name got too big to be able to make them here.

I guess I am different, but I think this should be illegal..

Different Drummer · Nov 16, 2022

When our manufacturers out source to Chynah it is a no brainer that their products will be replicated by the largest copy-cat producing Country in the world. But I guess they just don't give a crap as long as the profit margin increases. Much more complicated and proprietary technology has been pirated from the West by Chynah.
Some people think I am nuts but I will spend a considerable amount of time and energy to search out a product that I need which is NOT made in Chynah. And, of course that means paying more as well. What is good for one is not best for all I guess. But, my choice works for me.
Minor rant over

Burla · Nov 16, 2022

True story, an old friend wanted to buy a wallet and wanted us to drive her around to find one, the only thing she asked that it wasnt made in china. We went to every store that sold wallets and we must have went to ten places and seen a couple hundred wallets, everyone of them made in china. We ended up at a saddle shop, the idea was to have them make a wallet, which they would do but the cost was over 100 bucks, but as it turns out they sold wallets there made in Indonesia. The price was somewhere inbetween china prices and handmade at a saddle shop, she seamed to be happy. But that was a lesson I will never forget.

HEMIMANN · Nov 16, 2022

Just wait until the executives re-outsource from China to India. Then we'll see some real junk. They tried to get us to source a small generator for 3rd world nations. During qualification testing at our place, the thing shook so badly the engine mounts broke in half @ 10 hours run time. Even our executives backed off the cheap is good mantra for those.

gfh77665 · Nov 16, 2022

Is this an oil thread anymore?

grizzstang · Nov 16, 2022

^^^Mostly, yes.

Burla · Nov 16, 2022

Did anyone think this wasnt gonna happen? GF-7 oils coming, 0w16 will be thick oil by 2028, lol.

0w8 and 0w12 coming soon? Well, if they will be that great, why would it take 5 years to make? LOL. And will they push that out to ten years like with some of the specs we just received after years and years of set backs?

ILSAC GF-7 will likely include the SAE 0W-8 and SAE 0W-12 viscosity grades. During the meeting, Jeff Harmening, API senior manager, notified the group of API’s intention to submit a request to the AOAP/LSG chairs to add the 0W-8 and 0W-12 viscosity grades to the current ILSAC GF-6B standard.

Burla · Nov 16, 2022

Who knows where you can find a motor oil graphing tool? You put in two known visc at 40 and 100 and it graphs it? Would be epic if we could have that.

PaleFlyer · Nov 16, 2022

ramffml said:
Yep, that and a catch can. Some guys are catching some gnarly liquid that would otherwise be reabsorbed by the engine.

I dumped mine at about 66000, and the can had been on there for about 6k. I'll be honest, it looked like oil to me. Viscosity, color, and flow... 5.7L

HEMIMANN · Nov 16, 2022

0W-Water + anti-corrosion additive. I'm patenting it.

HEMIMANN · Nov 16, 2022

Burla said:
Who knows where you can find a motor oil graphing tool? You put in two known visc at 40 and 100 and it graphs it? Would be epic if we could have that.

Would have to take the end temp terminus into account, at least the CCS vis at -30C and -35c for 0W's.

Synthetic Oil

Oil of Choice

Castrol Syntec/Edge

Royal Purple

AMSOil

Valvoline Synpower

Mobil 1

Other

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