Hypermiling techniques

[Nherring]

Hi all

 

I figured out a new technique that's had an amazing impact on my mileage driving on the interstate at 65-70 mph.

 

I set the cruise control at 70 while in battery later mode. When I hit a spot where the road goes into a modest decline, I cancel the cruise control and immediately reset it. The car immediately cuts the engine and goes into battery only mode until the road begins an incline. As a result, I've increased battery mode from about 30% on my daily commute down Interstate 95 to 52%. As a result, overall mileage on my 56 mike commute jumped to 90 mpg with 37 of the 56 miles in battery mode, including 6.6 - 7 miles I regen.

 

Note that if the decline is steeper, I leave cruise off, and let the car coast in regen. Of course when I'm going down a steep hill, I put the car in low and hit max regen while going 70mph. So by being careful with the various points I do this I can maximize battery usage and minimize engine use.

 

Without using this technique, I was at 80mpg. Clearly a major improvement. Overall fans usage for the 56 miles went from .68 gallons to .61 gallons - a ten percent improvement.

 

 

Since I get to plug in at work, this method works in both directions. Wow!

[ChuckJ]

Thanks for posting, I'll try it.

 

ChuckJ

[boybees]

How many miles do you get in pure EV mode going 70 on the interstate, if you just let it run in pure EV mode and do nothing else?

[FusionEnergi]

I have increased tire pressure from the 35 minimum psi to 45 psi which is still under the tires firewall rating which is 51 maximum pressure. Your tires psi will increase with speed due to the tires warming up, but I have not taken it on the highway for sometime now. I can feel bumps a little more, but I go slow anyway. I have used this trick for years and have noticed a greater Mpg in both my other vehicles.