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BajaNomad
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Location: San Diego, CA
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Pemex Premium availability - and MTBE right now
Another observation on this trip.... the gasoline I've been purchasing on this trip to La Paz and back to San Diego - mostly Premium, except at the
station near the Tortugas/Asuncion highway in Vizcaino where the only gasoline available was Magna - has been smelling heavily of MTBE.
MTBE is good for vehicle performance, but not so good for the groundwater (when/where stored). As noted in another thread, Mexico is moving to
Ethanol use slowly because of this. But for now in Baja, looks like lots of MTBE in gasoline right now.
Premium was available where we stopped in El Rosario (Baja Cactus), Mulege (on highway south of town), Loreto (across from Motel Salvatierra),
Insurgentes (near T intersection in highway), La Paz, and (I think) Guerrero Negro (near Cowboy Motel).
Again, FWIW...
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Doug
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Bajatripper
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Not to worry, we're doing our best to use up all of the groundwater in Baja, so this shouldn't be much of a problem in the near future.
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DENNIS
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| Quote: | Originally posted by BajaNomad
MTBE is good for vehicle performance, |
So was lead.....they say. Good lubrication......they say.
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woody with a view
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ethanol is good for the farmer, and the guy selling you the gas. you get less MPG with ethanol so you are filling up more. just give me clean
gasoline!!!
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shari
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Mood: there is no reality except the one contained within us "Herman Hesse"
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FYI on Premium gas around Vizcaino...the new gas station just south of Vizcaino does have premium but not the main station like Doug says...we get it
when we are crossing the mountains to get to Sta.Rosalia.
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DianaT
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| Quote: | Originally posted by BajaNomad
Another observation on this trip.... the gasoline I've been purchasing on this trip to La Paz and back to San Diego - mostly Premium, except at the
station near the Tortugas/Asuncion highway in Vizcaino where the only gasoline available was Magna - has been smelling heavily of MTBE.
MTBE is good for vehicle performance, but not so good for the groundwater (when/where stored). As noted in another thread, Mexico is moving to
Ethanol use slowly because of this. But for now in Baja, looks like lots of MTBE in gasoline right now.
Premium was available where we stopped in El Rosario (Baja Cactus), Mulege (on highway south of town), Loreto (across from Motel Salvatierra),
Insurgentes (near T intersection in highway), La Paz, and (I think) Guerrero Negro (near Cowboy Motel).
Again, FWIW...
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Doug |
Interesting----I keep thinking we should use premium, but we always buy Magna for the Tundra. The 2003 Tundra has spent a lot of time in Baja and has
about 165000 miles on it, and seems fine.
Does someone have a good argument for why we should use premium? John says Magna is fine, I vote for Premium----who is correct and why?
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woody with a view
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we use the good stuff ONLY when we are loaded down with everything on our trips south. heavier loads thru the hills. i'm starting to rethink it tho.
she still pings if i try to get her to snap too, on them hills. i think if the manual says use regu;ar, it's prolly the best thing. higher octanes
cause the brain to overcompensate for the extra octane and your fuel curves get outta wack.
did i clear that up any?
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Bajahowodd
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"The good stuff"? The majority of vehicles on the road are designed to run on regular. Check your vehicle manual. If it says regular, you will get
absolutely no benefit from pumping premium.
Interesting quote in this article is that putting premium into a car that's designed to run on regular is like throwing quarters into a wishing well.
http://www.consumerenergycenter.org/transportation/consumer_...
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DianaT
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OK, John wins this one-----can't let that happen too often. 
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DENNIS
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| Quote: | Originally posted by DianaT
Does someone have a good argument for why we should use premium? John says Magna is fine, I vote for Premium----who is correct and why?
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Most cars I'm in touch with run well on the 89 octane, Magna. I think that's the number, and the higher test is 92.
I'd rather ruin an engine than worry about it, but I doubt I will.
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rts551
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fill up your five gallon container at the station in Vizcaino and see how much you are really getting. 3 weeks ago wee were able to sqeeze (and pay
for) 22 litres into that poor container.
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DENNIS
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| Quote: | Originally posted by rts551
fill up your five gallon container at the station in Vizcaino and see how much you are really getting. 3 weeks ago wee were able to sqeeze (and pay
for) 22 litres into that poor container. |
Yeah....those rubber gas cans have a tendency to expand.
So....what is your point, Ralph?
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Bajahowodd
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Location: Disneyland Adjacent and anywhere in Baja
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That station on the South end of town has been mentioned on this forum a number of times. And never in a good way.
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shari
Select Nomad
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Location: bahia asuncion, baja sur
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Mood: there is no reality except the one contained within us "Herman Hesse"
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we only buy gas at that southen station in Vizcaino when we need premium gas...Our toyota pick up pings and knocks when we go over the mountains if we
only use regular gas...Juan says its best if you have a load...we use it when towing a boat or loaded down and our truck doesnt knock or ping.
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Barry A.
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Shari, I am with Juan. I burned a hole in the top of a cylinder burning the old NOVA a long time ago, but the gasolina is much better now. Pinging
is not good, so avoid it if you can------that noise (ping) is your cylinder self-destructing (plus it's like taking a hammer to your rod bearings).
It gets expensive and time consuming to replace a cylinder like I had to do----my truck was in the shop in Ensenada for almost 2 months (the Ford
Agency), but they did a fabulous job. (that was in 1984, and the truck still runs fine now)
Barry
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Bob and Susan
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most newer cars are controled by a computer
buying premium gas is a waste and polutes the air
marketing makes people think they are pampering their car if they spend extra money on gas...its a waste
if your car is pinging its not tuned correctly or just old
if the manual say you need preminum then you may
otherwise just buy regular...save your money for something else
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DENNIS
Platinum Nomad
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| Quote: | Originally posted by Barry A.
I burned a hole in the top of a cylinder burning the old NOVA a long time ago, but the gasolina is much better now. |
To say the least. I had a tankfull of Nova once and I couldn't get my vehicle up and over the first hill toward Guadalupe. Had to turn around and
make other plans.
I considered drinking it, but I was a smoker then.
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DavidE
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Registered: 12-1-2003
Location: Baja California México
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Mood: 'At home we demand facts and get them. In Mexico one subsists on rumor and never demands anything.' Charles Flandrau,
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Voice your queries to the Shell Oil Co / Pemex joint venture refinery at Deer Park Texas. It's where every last drop of Pemex Premium UBA fuel
originates. Pemex was supposed to have installed HVDP lined tanks for the Premium fuel, but that is a definite supposed.
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David K
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Location: San Diego County
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| Quote: | Originally posted by DavidE
Voice your queries to the Shell Oil Co / Pemex joint venture refinery at Deer Park Texas. It's where every last drop of Pemex Premium UBA fuel
originates. Pemex was supposed to have installed HVDP lined tanks for the Premium fuel, but that is a definite supposed. |
Hi Dah-veed, que tal amigo? Can you provide the scoop on Ultra Low Sulfur Diesel in Mexico? We have heard from Antonio of Baja Cactus that Baja Norte
is good with the stuff... but why only Baja Norte after all these years... or why not the rest of Mexico by now?
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DavidE
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Mood: 'At home we demand facts and get them. In Mexico one subsists on rumor and never demands anything.' Charles Flandrau,
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It too comes from the Deer Park refinery, and is available only in Baja north and along a varying width strip along the USA border. It's only in
Mexico because US authorities insist that Mexican trucks that cross the border meet US emission standards meaning they burn pure UBA fuel. Fuel
supplies down Baja north all come from the north. It is unlikely that any fuel, Magna, included is made in Mexico for sale in Baja north.
There isn't enough UBA diesel to supply both the USA and Mexico. Secondly, logistical problems (Mexico is a big country) prohibit the cruelly
expensive overland trucking of USA diesel to central and southern Mexico. An 18-wheel tanker truck would have to pay in excess of seven hundred
dollars in toll highway costs to go from Texas to Merida Yucatan.
Fluor Corporation, the mega engineering a refinery outfitting corporation is presently at work building three new refineries in Mexico. Pemex is
hedging information but has stated that the new refinery in Salina Cruz, Oaxaca is to furnish UBA fuels (gasolines),
Hope this helps.
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