Agreed, it can happen sometimes that varnish gets into (freshly pumped) gasoline, especially when you pump gas from a station that just had it's storage tanks refilled. That may have stirred up dirt/varnish from the bottom of the tank, any grade gasoline could be affected. I had that happen to me once, and noticed it almost immediately as the car would miss intermittently. When it went away with my next fill-up, I knew it was the gasoline. OTOH, I used to have a '91 Taurus SHO (hence my user ID), and when that started misbehaving shortly after a visit to the gas station, I assumed the same thing and went to change the fuel filter, and, guess what: It still had the factory one on there (that was in 2007) Still, the filter was good and free-flowing, I found out later that it was the plug wires on their way out.
But, that's really somewhat off-topic, what I initially meant was that all these fuel injector/fuel system cleaners advertise how they restore power and improve fuel milage. Bogus, I say

 

x2 they all claim new engine in a can. only ones i have ever seen restore mileage or power is lucas and seafoam...but these were engines that were 30 years old and clogged with sludge and other unnamed foulness..and by power and mileage i mean it will fire on all cylinders...This one was so bad i had to take the orig 2bbl manifold off and scrap it out with a putty knife and fog the motor with deep creep...40,000miles later and it still runs like a top..not bad for a 1971...never been rebuilt so anybodies guess how many it really has.

 

Is this the place to discuss HHO?

 

I did the elect. fan to I used a fan from a PT crusier and I did remove the mech. fan

 

For my Jeep (4-banger), a set of platinum plugs ($8.99), plug wires ($11.99), distributor cap ($7.99) and rotor ($6.99) can be had for $35.96 total (before sales tax) at the 'Zone. It's all Duralast brand, except the plugs (Bosch or Autolite). Duralast is for the most part average or slightly above. Still, Accel is quality stuff and I wouldn't mind paying a little more for it (emphasis on little)

 

i run mine on liquid petrolem gas lpg its half the price of petrol so who cares about milage i get about 18mpg so at half the price of petrol its like getting 36mpg

 

Nitrogen is really not worth it...we use it on aircraft but for diffrent reasons, yuppie stuff on cars.
seen a guy selling someone on the upgarde (like 10$ or so) for some new M/T's take into consideration "air down stiuations" yeaa you got a nitrogen gen in your jeep?
just IMO

 

Well, I just seafoamed my engine after replacing the cracked exhaust manifold. I was getting about 14-15 mpg city driving. I use my xj to go back and forth for school. I am now getting between 18-19 mpg, same driving. I don't know if it was the seafoam or the new exhaust manifold, the old one was cracked bad, sure do like it though!!

 

Exactly right, at least IMO.
Aircraft use does not necessarily mean "better for automotive use".
Tires in aircraft experience MUCH different environmental extremes than on a car.
Air has been used for about a century in all manner of cars, doing all kinds of racing. It has worked well.
Nitrogen, again, IMO, is just a way to separate you from your money.

 

The ONLY advantage to nitrogen is that it lacks moisture. So tire pressure is not influenced by the expansion of that moisture as the tire heats up.

This is why aircraft landing gear struts and the like require nitrogen.

Nitrogen will not make any tire roll better or the car ride better.
Just another "green" thing to separate you from your money.

 

The ONLY advantage to nitrogen is that it lacks moisture. So tire pressure is not influenced by the expansion of that moisture as the tire heats up.

This is one reason why aircraft landing gear struts and the like require nitrogen.

Nitrogen will not make any tire roll better or the car ride better.
Just another "green" thing to separate you from your money.


Any substantial reason to convert to electric engine fans??

 

Not sure if you could call it substantial, but the mechanical fan saps a little power overall, from bottom of the seat experience I'd call it < 5%, about as much or a little less than A/C. Plus, it's always on, even when a fan isn't necessary. So for someone who'd like to squeeze the last drop of fuel out of the engine, yes, do it. OTOH, so far I haven't read anything about anyone installing a fan control module, so that the fan kicks in automatically when rising past 210 deg., or when A/C is on, and shuts off when highway speed's air flow (or generally air flow through the grille) is sufficient for cooling. Anyone?

 

your both on point, i work with aircraft now, but did automotive for years, always love the "reinvent air" ideas.
only thing green is the wasted money, least for cars. A/c on the other hand go from super hot to frezzing allll day, and must remain at the same psi. (ever leave a bike tire in the sun) haha same thing

 

Air pressure is a BIGGIE.
Maybe one of the single biggest factors IMHO.

I was getting worse milage than usuall, (about 13 to 15) then before a trip i checked the tire pressure.
All were about 20 to 22 psi!
Aired up to 32 and................22 mpg highway!

Sometimes its the simple things in life...............

 

Not really.
Aircraft use nitrogen in their tires because of the properties of nitrogen.

The gas itself is not affected as much as common air by temperatures and outside pressures (ie altitude).
Thats why you normally check tire pressures when the tire is cold.
Once it heats up from being driven, the tire pressure will rise a bit.

Nitrogen is not affected by this.
Also, many aircraft fly at altitudes over 30,000 feet.
This would be bad news for a tire.
It also keeps uniform pressure when the aircraft lands.
Thers a LOT of pressure and heat produced when a big plane touches down at 100+ mph!