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That's because premium doesn't clean any different than 87 of the same brand. They all share the same additive package. Stick to top tier fuel and stop wasting money on premium.
Right on, which is why I clarified my language to be they "infer" octane, though it must be said FFV vehicles go a step further and actually do have ethanol content sensors in line. Which can also be purchased aftermarket. Stuff you already know probably, just clarifying.
The problem with dyno testing for differences in octane is it's almost too controlled of an environment. Octane levels are all about preventing detonation. So with all things equal, other than octane, unless there is detonstion, there should be no discernable difference in power output. We all know in the real world driving, there are lots of variables that can effect performance that you don't encounter on the dynoRight on, which is why I clarified my language to be they "infer" octane, though it must be said FFV vehicles go a step further and actually do have ethanol content sensors in line. Which can also be purchased aftermarket. Stuff you already know probably, just clarifying.
As for Dyno numbers... hard to come by because any difference in a NA stock motor would be so small it would be difficult to attribute to that vs. other variances. Also not all vehicles react the same so generalizations cannot be made. And if its not same motor on same dyno in same conditions, any comparisons are worthless.
The best I've seen on this where they tried to control the variables as much as possible (e.g. same exact vehicles on same exact dynos under same exact conditions) was a Car and Driver article years ago:
Is Premium Gas Worth It? We Test High Octane on 4 Popular Vehicles
We tested higher octane fuel than manufacturers require on the Honda CR-V, BMW M5, Ford F-150, and Dodge Charger to see if it impacted acceleration or MPG.www.caranddriver.com
Among the engines tested were the 5.7 Hemi in a Charger and a 3.5 EcoBoost in an F150.
The results were essentially that while the dyno may detect a few more ponies on SOME engines, they dont translate into any real-world difference in performance. Except on the turbo F150, which I can tell you only becomes more apparent with custom tuning.
Curiously there is a single-sentence anecdote in this article about the old Honda 3.0 V6 making less power on premium than regular in a 2001 version of this test, so... idk.
Here's the 2001 article, which does an even better job explaining the fundamentals:
Regular or Premium?
Is premium fuel worth the premium price? Can you hurt a high-octane car by running it on the cheaper stuff?
True, thats why I think people" feel" a performance gain when running higher octane. They are actually not "feeling" the engine timing being reduced by knock. Also density altitude can play a factor in the butt dyno.
So I can't prove Premium helps clean the fuel system and related areas of the engine, like you can't prove it doesn't, its a matter of opinion. The best part is, it won't hurt my engine if I do use premium and is relatively cheap, adding MMO or injection cleaner helps a lot. I like MMO to help lubricate and hone related parts, especially the long trip that I just completed at 4800 highway miles droning along at 70 MPH getting 21 MPG, only the first and last tank was premium.
My statement is correct. Im well aware of flexfuel sensors. They detect alcohol yes. Not octane.
Not really. Dynos apply loads using water or friction but its not exactly like driving up hills. Your engine controller has tables it follows and adjusts according to existing sensors like MAP, IAT, RPM, O2 And an estimated fuel flow based on fuel pump flow, fuel injector flow rate which then calculates the Volumetric Efficiency and makes adjustments accordingly. There is no sensor telling the engine you put in high octane fuel. It just applies the timing the computer commands for the VE and if the knock sensor sees knock it will retard timing.
I don't have an Laramie, and I have already shown tons of pictures with fuel level, mpg, and average speed along with engine running time.
Yeah, I seriously doubt those numbers in the high 20s too. I've never heard another person with a 5.7 in a Ram give numbers like that.
I live kinda in the middle of nowhere, and if I keep the speed in the high 40s/low 50s for an extended length, the readout will say mid to high 20s. I've played around with it out of curiosity and kept it that high for 50+ miles, but it's an unrealistic speed to stay at in almost any conditions except for a 4am Sunday drive.
63mph on the freeway? Were you drafting a Prius?That's not freeway!
You have the patience of a saint. lol. I'm glad we don't have Canadian speed limits. If I get on a freeway, it's for a 3 to 12 hour drive. My freeways are 70 or 75 MPH. If I do 78, which cops don't even look twice. That's 15 miles further per hour. On just the 3 hour drive, that's 40 minute shorter time. I'll take the loss in mileage, over the time. It's not worth going more over the limit though, risking a $150 minimum fine, to save a couple more minutes.
Thats crazy, in Germany (at least 40 years ago) they have billboards on the autobahn pleading for drivers to keep it at 130 KPH, with no speed limit. I can tell you when a Lamborghini, Mercedes or BMW starts flashing their lights you better get over, it can be your fault if rear ended. I could barely go 130 with my little 1975 English Ford Escort and learned to get out of the way fast. Can you clarify the governor demanded by law on your truck, and what region? 65 MPH (105 KPH) is slow, but I guess they could have governed you to 55 MPH (90 KPH), like when the USA had a National speed limit of 55 MPH. There were a few States here that made a lot of money on tickets if you were caught going 57 or more MPH, but most ignored the 55 MPH limit.
Letting that TRX get to your mind I see.
