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trooper Tdiesel · 03-24-2012, 04:02 AM

is it dedicated LPG only
is it duel fuel, pump gas and LPG
or is it a converted gas auto

dedicated engines commonly have a little higher compression, then one that must also run on gas.
LPG just like ethanol, has lower BTUs and has a high octane rating, and very much likes high compression.

but when the engine was made orignaly to run on gas, but is converted to LPG, the economy will suffer a bit do to having 9 to 1 or so comp.

buy no means is this your cars mpg numbers, but it gives a "ball park" as to what is lost in MPG from gas to LPG
i wanted to show a car but i could not find a USA car that is LPG/gas powered off the dealer lot.... there's a few CNG cars, but not LPG cars.
Compare Old and New MPG Estimates

03-24-2012, 04:02 AM	#2 (permalink)
trooper Tdiesel live, breath, Isuzu-Ds Join Date: Mar 2011 Location: oregon Posts: 231 puddle jumper - '93 Suzuki sidekick base model energizer bunny - '86 isuzu trooper base model Clifford the big red dog - '84 GM S-10 durango Thanks: 1 Thanked 20 Times in 17 Posts	is it dedicated LPG only is it duel fuel, pump gas and LPG or is it a converted gas auto dedicated engines commonly have a little higher compression, then one that must also run on gas. LPG just like ethanol, has lower BTUs and has a high octane rating, and very much likes high compression. but when the engine was made orignaly to run on gas, but is converted to LPG, the economy will suffer a bit do to having 9 to 1 or so comp. buy no means is this your cars mpg numbers, but it gives a "ball park" as to what is lost in MPG from gas to LPG i wanted to show a car but i could not find a USA car that is LPG/gas powered off the dealer lot.... there's a few CNG cars, but not LPG cars. Compare Old and New MPG Estimates __________________ 1 86 T\D trooper with rare GEN 3 rods TRANS FIXED NOW DD 1 86 4WD 5sp pup is 2.3L gas, but plan on 2.2L diesel repower 1 91 trop, long term plan is a group buy of imported Isuzu 4JB1-T 2.8L I-4 engines, hoping to get price down to 2K not 3K plus 1993 sidekick my MPG toy, epa rating 26. i get 29/31 with stock drive train.