Base gasoline could be denser, higher in energy - Saab General Bulletin Board - Saabnet.com
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Base gasoline could be denser, higher in energy
Posted by Greg W [Email] (more from Greg W) on Wed, 21 Jul 2004 12:31:37
In Reply to: Could be gas source, awg, Tue, 20 Jul 2004 18:10:32
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Base gasoline batches do vary in characteristics, with some being incrementally denser and higher in energy content. However, virtually no refiners make brand-specific base gasoline (exception being Amoco low sulfur premium and Sunoco blended 94, among others), because the distribution systems generally don't support it. To do a mileage test simply driving your car, you've got to go through many different tanks under very consistent driving conditions, and then the results would only be approximate. According to the EPA, fuel economy can be affected by traffic congestion (10-15%), driving style (10-20%), AC (>20%), so you have to have enough samples to average these out.
As far as Shell is concerned, I'll not bore you again with my anti-Shell rants. HOwever, if interested, search on my name for my last tirade.
posted by 146.27.12...
Posts in this Thread:
- Is this possible?...gas question, Rookie, Tue, 20 Jul 2004 07:33:15
- Could be gas source, awg, Tue, 20 Jul 2004 18:10:32
- I've noticed that with Shell as well, Trev, Tue, 20 Jul 2004 11:05:40
- Well, I have had similar experiences but instead...., TKC, Tue, 20 Jul 2004 08:26:59
- This would result in lower calculated mileage, Greg W, Wed, 21 Jul 2004 12:17:17
- SID doesn't care about the pump....., Mike Lynch , Tue, 20 Jul 2004 12:35:48
- huh???, cryptical, Tue, 20 Jul 2004 08:37:26
- But the number of gallons you "think" you put into..., TKC, Tue, 20 Jul 2004 10:17:33
- Thermal dynamics could cause that..., Street, Wed, 21 Jul 2004 08:43:49
- I see what you're saying...but..., cryptical, Tue, 20 Jul 2004 10:36:07
- Arco has been caught several times - Octane..., Scott Paterson , Tue, 20 Jul 2004 11:34:28
- Yes, it's absolutely illegal and gas stations have...., TKC, Tue, 20 Jul 2004 11:30:12
- Not just that..., Rookie, Tue, 20 Jul 2004 10:43:58
- VERY possible!, cryptical, Tue, 20 Jul 2004 07:45:37
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