RC_Racer88
Active Member
Had the hypertech originally but sold it and using the Tazer DTHow did you calibrate for tire size?
Had the hypertech originally but sold it and using the Tazer DTHow did you calibrate for tire size?
Correct me if I'm wrong, but I believe Shell puts the same detergents in all grades of their gasoline.I only put shell. 89 and 93 octane. Won’t gain nothing in horsepower or mileage but that’s fine. As long as I get better detergents to keep the engine as cleanest as it can be.
All grades are top tier but the premium has even more detergents than the other grades and Shell SmoothGlide Technology.Correct me if I'm wrong, but I believe Shell puts the same detergents in all grades of their gasoline.
All grades are top tier but the premium has even more detergents than the other grades and Shell SmoothGlide Technology.Correct me if I'm wrong, but I believe Shell puts the same detergents in all grades of their gasoline.
Unfortunately I don’t have one of those around me... closest one is Wilmington I believe.
There has to be some correlation with ethanol elimination and MPG though. When I run E85 in my wife’s Jeep (v6) she’ll get like 16-18 MPG on the highway. Put in regular 87 with the usual up to 10% ethanol and it jumps to 24 MPG. I know that’s a more extreme example though.
Fuel | GGE | BTU/unit |
Gasoline (base) | 1 US gallon | 114,000 BTU/gal |
Gasoline (conventional, summer) | 0.996 US gallon | 114,500 BTU/gal |
Gasoline (conventional, winter) | 1.013 US gallons | 112,500 BTU/gal |
Gasoline (reformulated gasoline, ETBE) | 1.019 US gallons | 111,811 BTU/gal |
Gasoline (reformulated gasoline, MTBE) | 1.020 US gallons | 111,745 BTU/gal |
Gasoline (10% MBTE) | 1.02 US gallons | 112,000 BTU/gal |
Gasoline (regular unleaded) | 1 US gallon | 114,100 BTU/gal |
Diesel #2 | 0.88 US gallon | 129,500 BTU/gal |
Biodiesel (B100) | 0.96 US gallon | 118,300 BTU/gal |
Biodiesel (B20) | 0.90 US gallon | 127,250 BTU/gal |
Liquid natural gas (LNG) | 1.52 US gallons | 75,000 BTU/gal |
Compressed natural gas (CNG) | 126.67 cu ft | 900 BTU/cu ft |
Hydrogen by weight | 0.997 kg | 119.9 MJ/kg |
Liquefied petroleum gas (LPG) | 1.35 US gallons | 84,300 BTU/gal |
Methanol fuel (M100) | 2.01 US gallons | 56,800 BTU/gal |
Ethanol fuel (E100) | 1.5 US gallons | 76,100 BTU/gal |
Ethanol (E85) | 1.39 US gallons | 81,800 BTU/gal |
Ethanol (E10) | 1.019 US gallons | 111,836 BTU/gal |
One US gallon of gasoline contains 114,000 BTU of energy; depending on the time of year, and depending on what is in the gasoline.
It is getting harder to find gasoline's that does not contain 5 to 10% of Ethanol. Ethanol is ethyl alcohol; the kind of alcohol in beverages; beer, whiskey, bourbon, vodka, ****tails, etc..
It takes one and a half US gallons of ethanol to equal the energy in one US gallon of gasoline; the reason... because ethanol only has 76,100 BTU's of energy per gallon. Less energy means less miles per gallon.
Fuel GGE BTU/unitGasoline (base) 1 US gallon 114,000 BTU/gal Gasoline (conventional, summer) 0.996 US gallon 114,500 BTU/gal Gasoline (conventional, winter) 1.013 US gallons 112,500 BTU/gal Gasoline (reformulated gasoline, ETBE) 1.019 US gallons 111,811 BTU/gal Gasoline (reformulated gasoline, MTBE) 1.020 US gallons 111,745 BTU/gal Gasoline (10% MBTE) 1.02 US gallons 112,000 BTU/gal Gasoline (regular unleaded) 1 US gallon 114,100 BTU/gal Diesel #2 0.88 US gallon 129,500 BTU/gal Biodiesel (B100) 0.96 US gallon 118,300 BTU/gal Biodiesel (B20) 0.90 US gallon 127,250 BTU/gal Liquid natural gas (LNG) 1.52 US gallons 75,000 BTU/gal Compressed natural gas (CNG) 126.67 cu ft 900 BTU/cu ft Hydrogen by weight 0.997 kg 119.9 MJ/kg Liquefied petroleum gas (LPG) 1.35 US gallons 84,300 BTU/gal Methanol fuel (M100) 2.01 US gallons 56,800 BTU/gal Ethanol fuel (E100) 1.5 US gallons 76,100 BTU/gal Ethanol (E85) 1.39 US gallons 81,800 BTU/gal Ethanol (E10) 1.019 US gallons 111,836 BTU/gal
Is MTBE even used anymore? In the quest for reducing air pollution, MTBE contaminated ground water and is banned in California and New York.
MTBE controversy - Wikipedia
en.wikipedia.org
I've been using 87 octane California black gold for a month now. I cannot discern in performance or milage against the 89 I was using prior.
Just want to find out what fuel grade people are using.
I have the 2019 Rebel with the 5.7 Hemi (no e-Torque) and the manual recommends the 89 octane but 87 is acceptable.
Trying to figure out if I should use the recommended 89 octane or the 87.
What is everyone else using?
Thanks.
mid grade is usually a blend of the 87 and 93 tankAs mentioned earlier, make sure you buy 89 from a gas station with decent turnover on their 89. I'd say middle grade is the least sold octane, so you are at higher risk of old gas. If it's unusually cheap, might be the station trying to unload their tank of 89 to avoid waste. Just something to think about when debating which octane to use.
If you wind up in a pinch in a rural area on a trip, go with 87. Not worth crumming up the fuel system with questionable 89 ... wait to go back to 89 until you're back in an area with more gas turnover.