Premium vs regular, interesting results
#2
Mostly a knock against the retailers who market premium fuel to cars that are designed for regular. As for the guy saying that cars designed for premium can run regular due to advanced engine management, if you want the knock sensors to dial back the timing on your uber expensive sports car to save a few bucks a tank, go for it!
I know the new Ecoboost Fords adapt to octane but it takes time for that to happen (not sure about the Chevy Cruise they used). When they dumped premium in on the dyno, the car was still running on its map it created for regular so of course it will run worse.
I know the new Ecoboost Fords adapt to octane but it takes time for that to happen (not sure about the Chevy Cruise they used). When they dumped premium in on the dyno, the car was still running on its map it created for regular so of course it will run worse.
#3
Rennlist Member
Agreed...the premium gas people of course want everyone to use it, but the auto manufacturers are a better reference for what your car needs.
Btw, all 928s posting on this thread so far should definitely use premium, as they don't have knock sensors
Btw, all 928s posting on this thread so far should definitely use premium, as they don't have knock sensors
#4
Rennlist Member
Oops, not true...I was looking at the old sig and saw an '85, but missed the S4 above....oops!
#5
Rennlist Member
ive been using regular for my BMW, chevy tahoe for 14 years now, with no issues and 150,000miles.
however, i do run 91 pump gas on the 928 race car.... never race gas.
however, i do run 91 pump gas on the 928 race car.... never race gas.
#6
Rennlist Member
C'mon Mark...you have to FULLY COMMIT. Don't half-*** this stuff!
#7
Rennlist Member
I just watched the video.... Did all these people go to STUPID SCHOOL?
I got so excited when they went to the dyno to check hp.. turns out they check HP needed to run the car at 50mph on the rollers. WOW, it took the same hp to run the same speed, and the torque didnt change.. what a surprise.
man.. i was really hoping for a real dyno test!
I got so excited when they went to the dyno to check hp.. turns out they check HP needed to run the car at 50mph on the rollers. WOW, it took the same hp to run the same speed, and the torque didnt change.. what a surprise.
man.. i was really hoping for a real dyno test!
Last edited by mark kibort; 05-31-2016 at 12:03 PM.
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#9
Rennlist Member
Thread Starter
#10
Rennlist Member
Carol Montol oil industry expert... 17:00............. what a moron as well. the results of the tests were that the premium in the regular car, ran dirtier.. more hydrocarbons, but he says over time, the premium will make the engine run cleaner and put less diposits in parts of your engine.... (dirty) valves, cylinders, etc. there are so many idiots out there, at ALL the ranks of the oil and car industry. I think the gas station attendant that deciphers the octane numbers as being "% clean" is smarter . that was really funny!
#11
Racer
Run 93 octane in the 928.
Ran 87 octane in my 2003 Avalanche, that I sold at 298k miles. Only issue fuel related issue I had was fuel pump at 270k.
Running 87 in my F150 Ecoboost(baby engine 2.7). I do see a slight increase in MPG when running higher octane, but not enough to warrant the extra cost.
The testing in this video are about as accurate as my claims here. 1 sample/opinion. I dont think it proves anything.
Ran 87 octane in my 2003 Avalanche, that I sold at 298k miles. Only issue fuel related issue I had was fuel pump at 270k.
Running 87 in my F150 Ecoboost(baby engine 2.7). I do see a slight increase in MPG when running higher octane, but not enough to warrant the extra cost.
The testing in this video are about as accurate as my claims here. 1 sample/opinion. I dont think it proves anything.
#12
Rennlist Member
Run 93 octane in the 928.
Ran 87 octane in my 2003 Avalanche, that I sold at 298k miles. Only issue fuel related issue I had was fuel pump at 270k.
Running 87 in my F150 Ecoboost(baby engine 2.7). I do see a slight increase in MPG when running higher octane, but not enough to warrant the extra cost.
The testing in this video are about as accurate as my claims here. 1 sample/opinion. I dont think it proves anything.
Ran 87 octane in my 2003 Avalanche, that I sold at 298k miles. Only issue fuel related issue I had was fuel pump at 270k.
Running 87 in my F150 Ecoboost(baby engine 2.7). I do see a slight increase in MPG when running higher octane, but not enough to warrant the extra cost.
The testing in this video are about as accurate as my claims here. 1 sample/opinion. I dont think it proves anything.
you run 93 in the 928, why, when i run a 11:3:1, 6.4 liter engine at the track with 91octane with no issues in a myriad of conditions (temp, pressure, performance)
and, if the used a "real" dyno with that econo car , im sure the HP would have been equal or lower with the higher octane gas
#14
Rennlist Member