To my friends across the pond- what specifications (or grades) are there for propane? Over here there's commercial, HD-10 & HD-5. Each has it's own guidelines as far as contaminates, % of propane in mix, etc.
I'm having a fuel issue with a GFI system, with sequential fuel injection. In doing research on the system I found out that it's a widely used conversion on autos in Europe. I need to find out if the fuel in your corner is cleaner than over here. I also noticed that on the auto conversions, there are more filters installed- I'm thinking that maybe the filtration &/or cleaner fuel is the key.
The grade/purity of the lp fuel seems to be all over the place where I am (outside Phila Pa). I have some units where the fuel systems seem to last & last, others need constant attention. There's only 1 local lp supplier that will certify his propane is HD-5- none of the other locals will even agree that different grades of propane exist (propane is propane- what's your problem?).
With automotive propane conversions becoming more prominent here (especially in California), I think that an education in fuel quality is needed.
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Has anyone every tried the product IC 12 on any lp fueled engine? I see that in Europe & England, LP fuel cars are much more commonplace than in the states & a company in Ireland developed this product in response to fuel injector failure due to heavy ends build up in fuel injectors.
Titus- I appreciate your input. I will check out your standard. The older LP systems (high pressure Zenith types) were very forgiving of whatever slop you fed them. The lower pressure Impco became more sensitive & their life became much shorter if just any old LP was fed them. I find these new, fuel injected LP systems demand HD-5 grade LP for any kind of life span. I've had these newer systems clog in less than a week with the slop of old.
Educating my customers in the different grades of propane is difficult, as local suppliers don't know/care about anything but pushing product. They are viewed as the "expert" in their field & I'm accused of passing the buck for blaming the fuel for repeated fuel problems.
I wind up letting them use their LP after a fuel service, then disassembling their regulator after about a month to show the "tar". I then clean the regulator, supply them with known good HD-5 LP, & then disassemble their regulator again in a month to show the difference. The look on their face is- as they say- priceless.
BBforks,
The lst time I went on a gas course was back in 1980, you appear to have to standards over there, from what my notes tell me our LPG consist of one standard that it conforms to and that's BS 4250.
LPG dose not have any additives and reclamation oil part of the processing system and is deposited in the regulator when LPG is fed to the engine ie sludge and heavy ends I refer to the stuff.
The benefits of running an engine on LPG and I'm sure you know them,
1 less engine wear
2 engine oil life extended 400%
3 smoother engine running due to LPG being over100 octane s
4 less spark plug wear.
5 les Co Co2 emissions
.Filters over here usually are of two types a solenoid type magnet for trapping iron filings that come out of the tanks, very fine micron mesh filter as on the Cat trucks I have noticed and quite thick felt pad filters as used on Yale trucks as on the impco gas system and Asian system.
I hope this info is of some use.
Regards Titus
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