Summarize all answers above about ethanol containing fuel I can say there is definitely a big problem for lawn equipment.
now if we move it to our car what would be the best?
we don’t have carburetors like lawn equipment and the only component is a tank and fuel lines.
for winterizing our cars for winter we need to remove any gasoline contains ethanol and keep the tank 100% full to remove air as much as possible from the tank.

any other hints?

 

Yes. Gasoline was the common thread. My bad.

 

Ok I'll just preface this by saying it took way too much discipline, patience, and effort and I will probably never do this again, but...

I just wrapped up basically a normal amount of driving I'd do through one tank of fuel, 100% on ECO and 100% keeping the eco throttle gauge under the white line. This basically means a rev cap of 2k RPM (only went to 3k RPM once when I misjudged when a red light turned green as I made a right turn, and I didn't want to royally **** off the cars coming through the intersection by cutting them off then being a snail).

- Over 320 miles I have a tank average of 21.1 MPG. This is mostly local suburban driving at varying speeds between 15-60mph with lots of traffic lights, school zones, some amount of idling while picking up kids as well. When I did take it on the highway for brief stints I kept it under 75mph. I still have a little over 1/4 tank of fuel left per the gauge, which means likely 6-7 actual gallons of fuel extrapolated to 450+ miles on this tank of gas if I were to see it through. I don't have a max "range" reading because this was only one tank of fuel and the computer doesn't adjust that quickly on fill-up.

- In my normal driving, which is the same type of driving conditions but involves me doing lots of paddle downshifting, bursts of acceleration basically using 2k RPM as a floor instead of ceiling, some tinkering in Sport+, and highway speeds that hover between 85-90mph, I get 16-17mpg.

This was just an exercise to see what the car can do if driven with an extreme featherweight foot in the most economical way I know how to drive. I got 30% more mpg than I typically would get..that would save me $20 in gas per tank if I ever need to pinch the wallet I guess.

One day I may do a similar exercise on a road trip, but I think more people have done that and shown the car gets over 30mpg if you really just cruise for 600 miles at 70mph on a single tank. I hadn't seen it done for more of a city driving exercise so I gave it a go, and I'll never be doing it again.

It begs the question...should I try the other end of the spectrum and see how low I can go?

 

You need to...for science.

 

Ok so I did it after several days of not being able to drive it thanks to hurricane Milton... I averaged a whopping 11.3 mpg on this tank. Got to 220 miles before I decided to fill it up.

LOL.

 

Just curious, which gas additive do you use? I have used Seafoam, HEET, and Sta-bil in the past, but nothing in my LC yet.

 

The only additive I have used in my LC is gum out fuel injector cleaner. You never know if it’s being added to the gas you purchase. Even top tier gas may not have it. But every 3k miles when my tank is low, I add a bottle of it.

 

Thanks.
-Rob

 

I use Lucas Octain Booster:

https://www.lucasoil.com/product/octane-booster/

With the crap gas we get in Arizona, this stuff has raised my KCLV by two points

Lou

 

^^^^ How do you even measure that?

 

With This:


And my phone

See this thread:

https://www.clublexus.com/forums/is-...-60-oh-my.html

Lou

 

To OP in the thread... After 5k+ miles, I regularly see 285ish miles range on fill ups. I drive almost exclusively in sport+ and M mode with lots of down shifts and engine braking to stops, and not really economical shifts when accelerating ie always at or above 3k RPM