MPG Pt.1

[88marmon]

http://pure-gas.org/

[Stewart G Griffin]

Thanks!   Exactly the website i was looking for.

[88marmon]

np. this thread got me thinking about the crap gas nowadays. My lawnmower, Monte SS, and Camry were all recently running crappy; either hesitation, loss of power, and/or loss of mileage. I didn't think about the correlation between the different older vehicles till now. I'm going to start gassing up at a station that sells 100% gas, and hopefully notice a change for the better.

[Stewart G Griffin]

OK, that's more like it------269.9 miles,  16.588 gallons to fill up = 16.27 mpg.

$45.93 at Exxon.  $43.46 after rebate which i'll talk about in another thread.

Choke was better adjusted this time.  Still not quite 100% but pretty close.

We can see that minus 45 cubic inches(305 vs. 350) probably won't make much a difference in a heavier vehicle.

Do you think that the quadrajet is remarkably more efficient that a 2G all other factors being equal?  Even if it does, i'm not really interested in changing over right now.

[bobcooter]

Ethanol has to be one of if not the biggest comsumer rip off scams ever devised. I noticed I get worse gas mileage with it. So, in the long run I burn more gas! Plus it ran up the costs of everything else in the grocery store due to shortages of some types of grain because of all the farmers swicthing to corn. Fed prices went up because all off the corn for feed going to make ethanol. Thank you Federal Government for once again making the working people suffer while making your croony buddies flithy rich!

[Canadian 4X4]

Ethanol definitely was a stupid invention, worse fuel mileage and ethanol attracts water gas' biggest enemy. I work at a marina and we had a really bad run of fuel from the local marina the problem was it was ethanol fuel and any amount of water will end up in the carb and the motor runs horribly. The marina had to switch fuel companies to a pure gas.

[Stewart G Griffin]

Well, we've opened up a can of worms haven't we?

i though i would mention this before i forget:

i just read that the E10/15 blends have a lower boiling point than 100% gas which can cause leakages out of the carb when the engine is shut off hot.   i'm not sure what is going on here when this phenomenon happens, so please discuss this.

Here's the link---i'm not sure how i ended up there, but i thought i would post it before i forgot about it:

If you could scroll down to the bottom
http://www.pontiactripower.com/blog/

[bobcooter]

Alcohol absorbs water. Great.

[Jims86tpisub]

Stewart, I don`t know where you are located, Altitude wise, But have you considered changing the Metering rods/jets a step or two down? I can remember doing this on a friends 75 k10 with 350, and our best was 21mpg. Timing was at 4btdc. Magnaflows, stock manifolds.

[Stewart G Griffin]

i'm on the east coast;  Not high---i'm ASSuming 200ft above sea level.

But yes, moving down one(or two) jet sizes is a good idea.  i may consider that.

[Stewart G Griffin]

Also consider getting a carb riser.

[Layne]

Stew- whats up with your picture?

[beastie_3]

Stew- whats up with your picture?

Looks fine to me...just a custom job.

[Canadian 4X4]

What kind of mileage would be expected with a 4.3 700r4 3.08 combo?

[VileZambonie]

Well, we've opened up a can of worms haven't we?

i though i would mention this before i forget:

i just read that the E10/15 blends have a lower boiling point than 100% gas which can cause leakages out of the carb when the engine is shut off hot.   i'm not sure what is going on here when this phenomenon happens, so please discuss this.

Here's the link---i'm not sure how i ended up there, but i thought i would post it before i forgot about it:

If you could scroll down to the bottom
http://www.pontiactripower.com/blog/

Fuel leaking when the engine shuts off because of the fuel blend? No