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Interesting news story about fuel and the 8.

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Old 05-16-2008, 04:00 AM
  #26  
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Originally Posted by neXib
We only have 95 and 98 here, which is equivelent to your 91 and 93 I guess, but AFAIK it's also lower in some other European countries. And btw 1 litre of 95 costs 2.57 dollars here now. That's like 9 dollars per gallon, now that's gas prices, eventhough we produce a lot more oil and gas than we use
Hey neXib, actually we also have 100 octane gas here in Europe, from BP (www.bp.com) (http://en.wikipedia.org/wiki/Octane_rating), and even 102 octane being trialled in the UK atm. And apparently it does really good for the 8 engine, heard from the local mazda dealer that you should use 1-2 full deposits of 100 octane in between every 10 deposits of regular gas (95 or 98) "to clean up the engine". If this is true or not, I do not know.

Greets,
G

Last edited by gafa; 05-16-2008 at 04:02 AM.
Old 05-16-2008, 04:18 AM
  #27  
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Originally Posted by gafa
Hey neXib, actually we also have 100 octane gas here in Europe, from BP (www.bp.com) (http://en.wikipedia.org/wiki/Octane_rating), and even 102 octane being trialled in the UK atm. And apparently it does really good for the 8 engine, heard from the local mazda dealer that you should use 1-2 full deposits of 100 octane in between every 10 deposits of regular gas (95 or 98) "to clean up the engine". If this is true or not, I do not know.

Greets,
G
FALSE, u can't clean ur tank with higher octane, now, if u run 10 tanks of cheap off brand gas, i highly recommend getting V power with good gas detergent to clean ur tank.
Old 05-16-2008, 04:41 AM
  #28  
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Yeah I think I've heard of 99 or 100 octane when I think about it. Only in one gas station in Oslo I think in my country. Shell station I believe. But I heard that the Renesis doesn't actually benefit from high octane, so 95 should be fine. No idea what's true though.
Old 05-16-2008, 12:56 PM
  #29  
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Originally Posted by superglue
I don't understand why people spend +$25K on a performance car and then fill it with crappy gasoline to save a dollar.
.....so they can make their montly payments...????
Old 05-16-2008, 01:02 PM
  #30  
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high octane is safest to run on all conditions. With North America's geographical diversity, it makes sense to recommend 91+ oct. to avoid engine knock --> kaboom in hot climates like Vegas or Florida. Also high octane helps in high altitude places like Colorado. More load going up hill.
Old 05-16-2008, 01:15 PM
  #31  
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Originally Posted by delhi
high octane is safest to run on all conditions. With North America's geographical diversity, it makes sense to recommend 91+ oct. to avoid engine knock --> kaboom in hot climates like Vegas or Florida. Also high octane helps in high altitude places like Colorado. More load going up hill.
I live in tx and in the summers it gets easily over 100 degrees ive once ran on 87 for some time maybe about a month didnt experience any pinging my car ran normal..

but once i went back to 93 octane my car almost stalled and had loss of power until i drove it a couple of miles then it all went away it kinds scared me lol as i was at a stop light and it started rumbling.. ever since then i never cheaped out on my gas
Old 05-16-2008, 01:54 PM
  #32  
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I always used 91

I tried 87 once and it pinged @ 6-7k rpm

after finished that tank, I just put 91+premix

alway
Old 05-16-2008, 09:08 PM
  #33  
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I have heard only bad stuff about 8s and alcohol - regretble as we produce a lot of HOOCH around here...

I have a 20 year old Mazda "great little car" runs good and engine looks almost new because of premium and moble 1 - too bad that oil is not approved for 8s!

Premium not $4.15 per gallon at Exxon and worse at other stations up to $4.55

A Senator during a hearing about 3 days ago said prices are awful because of De-regulation of controls on commodity markets - but no one has suggested repealing the de-regulation - ENRON, over priced electricity, and bad mortgages all circle back to de-regulations.......
Old 05-17-2008, 07:32 PM
  #34  
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Originally Posted by rotarygod
The more you drive and the worse you gas mileage, the more a few cents can really add up into something considerable. Truckers would kill for a measely 5% improvement in economy or prices as they drive huge amounts each year. Conversely the person who only drives 10,000 miles a year won't really feel even a considerable price hike or lowered efficiency. A few cents has different implications to different people.

My cousin is a trucker. The only reason he hasn't flipped out yet is because the loads he delivers are usually expedited and they ( the companies he delivers to) pay fuel surcharges
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