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RnR
Senior Nomad
Posts: 836
Registered: 5-1-2010
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Comparative Gas Mileages
With recent forum topics discussing the various attributes of California gas, Mexican gas, short liters, high/low octane, etc. ......
I decided to keep careful records on a recent trip from Nevada, through California, and on down to the East Cape.
So....
1997 Ford F250, 4x4, 460 gas engine, towing 6x10 cargo trailer.
Normal mileage on Nevada gas, unloaded - 10.5 mpg
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Loaded, 300 miles using Nevada gas - 9.5 mpg
Loaded, 550 miles using California gas - 8.7 mpg
Loaded, 950 miles using Mexican gas - 8.0 mpg
Draw your own conclusions.....
(And that was DOWNHILL, right???? Can't wait for the return trip!!)
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bajagrouper
Senior Nomad
Posts: 964
Registered: 8-28-2003
Location: Rincon de Guayabitos, Nayarit, Mexico
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Mood: happy and retired
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I am just the opposite, In California I get 31.5 on freeways and Mexico I get between 35 and 37.8 on toll roads...
2011 Subaru Outback AWD.......
I hear the whales song
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weebray
Super Nomad
Posts: 1094
Registered: 7-19-2010
Location: La Paz
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Mood: lleno
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Everybody, including the pope, lies about their gas mileage.
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chuckie
Elite Nomad
Posts: 6082
Registered: 2-20-2012
Location: Kansas Prairies
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Mood: Weary
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With my Dodge Diesel, 2500 4WD, 5 speed manual I get 72 MPG on Mexican Diesel vs 21 MPG on US diesel...Just sayin,,,, (MPG=miles per grins)
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Barry A.
Select Nomad
Posts: 10007
Registered: 11-30-2003
Location: Redding, Northern CA
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Mood: optimistic
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| Quote: | Originally posted by weebray
Everybody, including the pope, lies about their gas mileage. |
WRONG!!!!!! and very cynical. 
Barry
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TLBaja79
Nomad
Posts: 267
Registered: 10-17-2013
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Interesting...
Think less octane in Gas down in Baja?
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dasubergeek
Senior Nomad
Posts: 694
Registered: 8-17-2013
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I can tell a difference with the aditivo...
2002 Honda Accord 4-cyl., 26 mpg highway in California, 25 in Mexico without aditivo, 29 in Mexico with aditivo.
2014 Chevrolet Silverado 8-cyl., 21 mpg highway in California, 23 mpg highway in Mexico with aditivo (haven't tried it yet without aditivo).
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vandy
Senior Nomad
Posts: 538
Registered: 10-10-2003
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About exactly right.
Mexican gas shorted 10% at pimps.
Or do I mean pumps?
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captkw
Ultra Nomad
Posts: 3850
Registered: 10-19-2010
Location: el charro b.c.s.
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Mood: new dog/missing the old 1
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Vandy,Vandy<vandy
You have a sick good sense of humor !!!
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captkw
Ultra Nomad
Posts: 3850
Registered: 10-19-2010
Location: el charro b.c.s.
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Mood: new dog/missing the old 1
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gas mileage reading
Do Not...base your gas mileage on your ecm,or what you know as a dash board read out !!!!
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RnR
Senior Nomad
Posts: 836
Registered: 5-1-2010
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| Quote: | Originally posted by TLBaja79
Interesting...
Think less octane in Gas down in Baja? |
Definitely lower octane in Baja. I use premium in mexico. The truck "pings" immediately on the first tank of Magna (when loaded or uphill).
The truck runs great on 89 octane in the states. Switch to the 87 octane that's available in eastern NV or Utah, and the ping appears. Go back to
89, smooth and quiet.
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bajadogs
Super Nomad
Posts: 1064
Registered: 8-28-2006
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| Quote: | Originally posted by chuckie
With my Dodge Diesel, 2500 4WD, 5 speed manual I get 72 MPG on Mexican Diesel vs 21 MPG on US diesel...Just sayin,,,, (MPG=miles per grins)
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I guess there is a reason you can't find a good used Cummins 2500 4X4 Manual.
Back to topic - The results posted by RnR are totally uncontrolled and prove nothing (no offense RnR). Driving conditions are different in Nevada,
Cali, Baja.
We need to put the same car/bike/truck on a track/road/trail under controlled situations using these different fuels. Eliminate the variables. That's
the only way. My guess is the difference will not be worth the time you wasted reading my opinion.
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willardguy
Elite Nomad
Posts: 6451
Registered: 9-19-2009
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| Quote: | Originally posted by weebray
Everybody, including the pope, lies about their gas mileage. |
you know the new popemobile is a 1984
renault, probably does pretty good. not saying he's above fudging the numbers though........
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David K
Honored Nomad
Posts: 64739
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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2010 Tacoma V-6 AUTO 4WD...
Hwy. Mileage:
CA and AZ REGULAR empty bed (Costco, 76, or ARCO): 16.5-17.5 mpg
CA and NV PREMIUM empty bed (Shell or Chevron): 18.1-18.4 mpg
PEMEX REGULAR (heavy load + border wait): 19.2 mpg
City Mileage (Costco or ARCO REGULAR): 14.5-15.5, currently testing with Shell Premium.
Have a Fuelly.com account... and shows my current average as 16.5 mpg, but I didn't input several fillups when the mileage was city (low).
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David K
Honored Nomad
Posts: 64739
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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| Quote: | Originally posted by RnR
| Quote: | Originally posted by TLBaja79
Interesting...
Think less octane in Gas down in Baja? |
Definitely lower octane in Baja. I use premium in mexico. The truck "pings" immediately on the first tank of Magna (when loaded or uphill).
The truck runs great on 89 octane in the states. Switch to the 87 octane that's available in eastern NV or Utah, and the ping appears. Go back to
89, smooth and quiet. |
Magna is 87 octane (per their rating system).
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bonanza bucko
Senior Nomad
Posts: 587
Registered: 8-31-2003
Location: San Diego
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Mood: Airport Bum
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I don't think there is much difference between USA and Mexico in mileage on my 2010 F150 4X4....it's all lousy. Here's my rant about this:
The sticker on the new truck advertised 14 MPG city and 18 MPG highway. I'm a numbers and records freak so I have, as of today, 98210 miles worth of
data about that and my truck gets 13.6 MPG day in and day out.
The handy digital readout in the truck always reports about 20% better mileage than that. The owner's manual says the way to measure your mileage is
to get the truck up to 55 MPH on a level road and then run it for about 4 miles and read the results on the handy little display. That assumes that
your basic American dumb$#@! will believe anything. It is a damned lie.
So I took my truck to the dealer and he said that "the Feds put that sticker on the truck. They measured the mileage and that's what it is." Now
ain't that nice? Kinda sounds like we should believe Obama about keeping our doctor and health insurance doesn't it.
One nice thing I found out by being a numbers freak, however: Above 5000 feet in the mountains my F150 gets 18-19 MPG all the time. That has to be
caused by the fuel injection system matching the incoming fuel to the oxygen in the air...less O2 so less fuel so less power. But the dealer couldn't
figure that out either....his service department didn't want to know the facts.
So...when you buy your next 150 (and I will because it's a good truck) just be ready to read the MPG sticker as the damned lie it is.
BB:-)
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RnR
Senior Nomad
Posts: 836
Registered: 5-1-2010
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| Quote: | Originally posted by David K
| Quote: | Originally posted by RnR
| Quote: | Originally posted by TLBaja79
Interesting...
Think less octane in Gas down in Baja? |
Definitely lower octane in Baja. I use premium in mexico. The truck "pings" immediately on the first tank of Magna (when loaded or uphill).
The truck runs great on 89 octane in the states. Switch to the 87 octane that's available in eastern NV or Utah, and the ping appears. Go back to
89, smooth and quiet. |
Magna is 87 octane (per their rating system). |
Well, that explains the ping!
Guess that I always assumed it to be 89 octane.
Currently, the price of premium is not much different than the price of Magna. $3.65/US gal -vs- $3.50/US gal. A whole lot better drive-ability for
the extra 15 cents/gal.
Not sure what they use as an octane booster, but, it is nasty stuff. Catch a whiff of it while fueling and your eyes will water and nose/throat will
burn. The odor is reminiscent of the old methanol-based "winter blend" gasoline that was discontinued in California, only MUCH more intense.
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PaulW
Ultra Nomad
Posts: 3059
Registered: 5-21-2013
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Interesting. My car & truck run fine on PMEX87. The sons Patton engine C8 ran fine on PMEX91 and diesels and pings on CA91. The new Boss351/427
Ford crate engine runs fine on PMEX91 and CA91. The fuel in northern Baja is supposed to come from the US except without any of the Ox additives. I do
no know how to verify that.
Anyway most of us gear heads were under the belief that the PMEX stuff was pretty good and comparable to AZ, NM, & CO stuff with no Ox additives.
And about the same price/gal re PMEX.
Meanwhile your gas mileage using PMEX will be at least 5% less than anyplace in the states due to cheater gas/diesel pumps.
PW
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bonanza bucko
Senior Nomad
Posts: 587
Registered: 8-31-2003
Location: San Diego
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Mood: Airport Bum
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The way you test for ethanol in the gas is to measure some amount into a clear cup....my wife's measuring cup works if I don't get caught using it:-).
Then you note the amount of gas in the cup. Then you add a small amount of water. The ethanol will combine with the water and leave all the gas
behind. If you end up with less "gas" than before and more water there is ethanol in the gas. I measured some PEMEX at Gonzaga Bay two days ago and
there was no ethanol in it. I love it.
In Mexico they eat the corn and they don't burn it up in their vehicles. They have the brains and balls to prohibit the stupid PCness that forces us
to do that.
BB:-)
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David K
Honored Nomad
Posts: 64739
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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Not being diluted with ethanol is got to be a reason for better mileage on Pemex. 10% ethanol that has only part of the energy of gasoline must cause
at least a 5% drop in mileage... while raising the price of food (corn)...?
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