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| Re: The member who makes post # 1000 in this thread wins a prize! Or you could just type in 1 word for each msg. That would really hold everyone's interest. |
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| Re: The member who makes post # 1000 in this thread wins a prize! Quote:
Think you're right. It's wasted in this thread. |
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| Re: The member who makes post # 1000 in this thread wins a prize! I'm not a chemist Y-block so I don't know for sure, but I would think it has something to do with the chemical makeup of the gas. The 86 probably puts out less BTU's per gallon than the 87. That allows the oil companies to sell 86 a few cents cheeper per gallon. Here on the west-coast we have ARCO. While their regular is rated at 87, and usually sells for 5-8 cents less than say Shell and Mobile, I'm sure it has less BTU's. When I use the ARCO my mpg drops slightly, and performance also suffers slightly. I once filled my tank with ARCO and then drove up into the mountains. About 6,000-7,000 ft. ASL. I noticed a slight pinging under load at the higher altitudes. I've not had that problem with a name brand gas. This is by no means scientific proof, just my thoughts and my 2 cents worth. |
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| Re: The member who makes post # 1000 in this thread wins a prize! Here in OR ARCO uses either 5% or 10% alcohol. I dont remember because it has been a long time since buying gas from them. They are the only ones using ETOH, and the bottom end octane is 87 like the other stations. I wonder if states where we found the lower grade at 86, were using alky blends (NM, TX, OK, KS)? Even if they were, that wouldnt explain the 86.
__________________ 46 1/2 ton with 56 292:thumbsup: |
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| Re: The member who makes post # 1000 in this thread wins a prize! Higher octane gasoline is less likely to spontaneously combust under pressure. I live on the east coast and have rarely seen less than 87 octane for sale anywhere. I didn't know it was more common in other parts of the country but it's probably cheaper? My guess is that 86 is just as good as 87 for most naturally aspirated engines. If you have a high compression engine (turbo or supercharged) you definitely need higher octane. Has anyone else noticed a difference between different brands of gas? I've never noticed it myself but I have a few friends who swear by certain brands. I always figured they were crazy but maybe it depends on the car. oops, maybe I should have milked a few more posts out of this ![]() |
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| Re: The member who makes post # 1000 in this thread wins a prize! Quote:
Which in turn allows the oil companies to produce and sell it for a few pennys less. I don't know why they would want to do that in some areas and not others. My Ranger Owner's manual states. "Your vehicle is designed to use "Regular" unleaded gasoline with a pump (R+M)/2 octane rating of 87. We DO NOT recommend the use of gasolines labeled as "Rergular" that are sold with octane ratings of 86 or lower in high altitude areas. To me that implies that if you use 86 octane in high altitude areas and damage your enging, your warranty might be void. |
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| Re: The member who makes post # 1000 in this thread wins a prize! Quote:
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