It’s not a given. Say you idled or had low Hybrid battery charge and no. Regen, you’ll obviously have the motor on more. Also if you’re gunning it, motor will similarly kick on a ton. I personally find it fun to try to see how far I can get on battery but that requires constant slowness or what they said above about a constant 55-60 (above it seems mpg suffers)
Yes. The engine(that is the ice) is not efficient at low speeds. So if you are not able to run battery the mpgs are horrible.
In today's modern engine with variable cam timing premium fuel can make you that difference back depending on driving styles.
The opposite is true: it is most efficient at lower speeds
No the engine is the gas engine. IT is not efficient at low speeds. Your electric is VERY efficient. The OP drove 1.5 miles and 33 percent on ENGINE. this killed his fuel mileage for the TWO mile trip. You drove a long time allowing the engine to charge the battery. That is an efficient trip. Now the pp only drove .4 miles in gas...at low speeds the ICE averages like 8 miles per gallon. And that is assuming that it did not idle. I have literally seen a 1 mile trip end in less than 15 mpg because the electric motor did not turn on long enough to amount to anything. On the flop side I have seem that same trip be electric only.
You are taking one trip the OP did as fact that the same exact trip driven the exact same way will always produce the exact same MPG report.
I did say almost never make the difference back and I stand by that. I saw one example in the forums where the math worked and it was by a hair.
I did not say it was the case with this engine, but you said never
I'm with @huunvubu on this one. Wind resistance is not linear. It takes more energy to overcome the resistance if wind at higher speeds. On a single speed transmission (eCVT) where the transmission is in it's highest gearing from the beginning, I think that lowest possible maintainable speed will yield best mpg. I'm talking flat drag strip 5 miles long with exactly the same wind temp etc. Yatta yatta yatta. I bet the best achieved mileage will be under 55, for sure.
Tundra, 4.6 5.4 and 5.0 fords older hemi v8s
And what's the math on those?
Average is around 2 mpgs. Those trucks all average way less than 20 mpgs. So greater than 10% better. Here is the kicker. I normally see premium around .30 cents higher than regular. Under Trump fuel prices were really low. It was around 2.30 for premium around here. So math did not come out. Under Biden it has been well above 3 bucks for regular. So less than 10 percent more for Premium and more than 10% more fuel mileage. It works out over the long run. In areas with 4 and 5 dollar gas the returns are even better.
