Shell's Nitrogen Enhanced Gasoline.

[markweatherill]

Sounds like it's the detergent package that is 'nitrogen enriched', whatever that means. Nitrogen is a known ingredient in fuel detergents.

[bowtieguy]

Originally Posted by aalb1

Also it is a great point made that if it does improve FE then they would of course want to mention it. So it doesn't seem too promising from a FE perspective.

false advertising suit liability could be a concern. the real question might be IF it truly keeps engines cleaner, it would not necessarily increase FE, but could it slow the negative affects of a dirty engine and related FE loss?

[Jay2TheRescue]

Personally I always thought ethanol did a pretty good job keeping fuel systems clean. Years ago in my area 7-11 was the only place that carried ethanol fuel. It was pretty much common knowledge that if you bought a new car and ran it on 7-11 gas from day one you wouldn't have problems, but if you switched to 7-11 gas after the car was a few years old it would unleash all sorts of gunk in your fuel system at once.

[GasSavers_GasUser]

Originally Posted by Jay2TheRescue

Personally I always thought ethanol did a pretty good job keeping fuel systems clean.

It does, and we have 10% of it in the "winter gas" here, and it takes a toll on everyone's gas mileage......along with the cold weather. But don't forget, that we have unleaded gas and that burns a lot cleaner than the leaded variety of years past anyway. Also we have the federally mandated detergent packages that everyone ads to their fuel.

If we had Shell here I would try it just to see what it does (if anything) to my fuel economy. Just because I am curious.

[dkjones96]

GasUser brings up an interesting point and it makes me wonder if the change in mileage because of the winter blend isn't actually because of the blend itself but weather changes... hmm.

Time to start data logging again!

[aalb1]

Originally Posted by dkjones96

GasUser brings up an interesting point and it makes me wonder if the change in mileage because of the winter blend isn't actually because of the blend itself but weather changes... hmm.

Time to start data logging again!

No need to datalog unless you want to get specifics with your car. Ethanol content in gasoline should always effect gas mileage. Some more obvious than others. (IE BIG SUV compared to a Civic/Metro) This is why some have always been skeptical of using ethanol as a bio fuel as it doesn't produce as much energy compared to fossil fuels. The EPA does have separate MPG Ratings these Flex Fuel Vehicles (Approx 30% less) http://www.fueleconomy.gov/feg/byfueltype.htm

Now with 10% ethanol in gas. The difference won't be as drastic but they should still be there.

[VetteOwner]

lol i always loved the shell commercials, they always show a gunky valve that looks mysteriously like a used valve with black cornflakes stuck to it... heck even the valves i pulled outa my Model A engine thats been sitting for 50+ years wasnt anywhere near that bad....(mind you thats before the dawn of detergent oils and filters)

[aalb1]

Originally Posted by VetteOwner

lol i always loved the shell commercials, they always show a gunky valve that looks mysteriously like a used valve with black cornflakes stuck to it... heck even the valves i pulled outa my Model A engine thats been sitting for 50+ years wasnt anywhere near that bad....(mind you thats before the dawn of detergent oils and filters)

ShamWOW!!!!

[bowtieguy]

Originally Posted by aalb1

ShamWOW!!!!

"...we can't do this all day!"

but they can do it EVERYDAY!

[thisisntjared]

it was my understanding that nitrogen is largely inert. perhaps it expands more than other things in the combustion chamber?

its the n2o that we want