http://www.gg7j.org/
Is the theory behind this correct?
From reading the site, it looks like it uses the engines vibrations to create higher frequency vibrations which are directed at the fuel line. This high frequency vibration helps break up long hydrocarbon chains and help the fuel burn more completely.
I then went to see how much it was, expecting it to be a $10 POS, its 90 bucks! No way they can sell a non-functioning product for that much.
Then I thought about how they always mentioned low octane fuel and older cars in the FAQ. Could decent results only come from low quality fuel? For example, I almost always use mobil gas because its among the best out there detergent and quality-wise. Would hydrocarbon "clumping" only be present in low quality fuel, which would make this product useless for me?
Ive got money to waste on other things at the moment, im just very curious.
Gimmic or Truth?
instead of paying 90 dollars, send a letter your local oil tycoon and tell him to throw those long chains in the diesel batch and improve our inferior diesel fuel.
Then, wait another decade until the US has passenger car diesel engines as good as Europe has today, and you will save more than 5% on your gas mileage forever after.
Then, wait another decade until the US has passenger car diesel engines as good as Europe has today, and you will save more than 5% on your gas mileage forever after.
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Q45tech
- Moderator
- Posts: 14296
- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
Pretty much all gasoline [except oxygenated and ethanolized] has the same BTU [+-2%] and it takes the same mount to generate a HP.
The problem with ODB engines is that the system is designed to keep cruise at 14.7 AF [the optimum for cats]..........no matter what you do the system will correct itself.........to provide no excess oxygen in the exhaust prior to the first cat.
Other than designing new O2 sensors, which have a leaner transition point or jeeping the software to accept a leaner cruise, you are stuck with flowing x amount of fuel for y rpm cruise.
The OBD software has a +-20% trim [at cruise] so, if you could fool the ecu you could improve the mileage by 20% if the cats didn't melt or you didn't burn the exhaust valves.
Unfortunately the premium grade motor octane available will knock at much leaner than 6-7% [say 15.7 A/F].
With the CAFE monetary penalties the manufacturers pay, if they could improve mileage by JUST 1 mpg they would gladly spend $250 on changes to each V8 car.
Oxygenated fuels make matters worse as they fool the O2 sensors into to enriching the mixture....that coupled with lower BTU ends up cost you 5% in poorer fuel economy.
http://www.swri.edu/3pubs/IRD1999/08910 ... 003/o2.htm
The problem with ODB engines is that the system is designed to keep cruise at 14.7 AF [the optimum for cats]..........no matter what you do the system will correct itself.........to provide no excess oxygen in the exhaust prior to the first cat.
Other than designing new O2 sensors, which have a leaner transition point or jeeping the software to accept a leaner cruise, you are stuck with flowing x amount of fuel for y rpm cruise.
The OBD software has a +-20% trim [at cruise] so, if you could fool the ecu you could improve the mileage by 20% if the cats didn't melt or you didn't burn the exhaust valves.
Unfortunately the premium grade motor octane available will knock at much leaner than 6-7% [say 15.7 A/F].
With the CAFE monetary penalties the manufacturers pay, if they could improve mileage by JUST 1 mpg they would gladly spend $250 on changes to each V8 car.
Oxygenated fuels make matters worse as they fool the O2 sensors into to enriching the mixture....that coupled with lower BTU ends up cost you 5% in poorer fuel economy.
http://www.swri.edu/3pubs/IRD1999/08910 ... 003/o2.htm
- Gimmic