Question very high MPG cars in the Garage (60-80 mpg Honda Civic?) - Fuel Economy, Hypermiling, EcoModding News and Forum

96sentra · 09-09-2010, 08:22 PM

Hi,

I am a long time lurker with a manual 96 nissan sentra 1.6L in the 49mpg tank average range.

I decided to post a question about some cars in the Garage section of this website that I am not sure how they get such high mpg. I have made many mods to my sentra and find it very hard to break 50mpg

I wonder about PaleMelanesian PaleCivic: 1996 Honda Civic DX Sedan who states that he gets 60-80+mpg with his mods being Grille Block Tires 60psi
Scangauge Mobil1 5w20. I don't see how this is possible given that I have done the same mods and much more and am still stuck at 49mpg, what is PaleMelanesian doing that I am not since we have very simmilar cars?

Also rtrt2889 2003 Toyota Camry LE 3.0L engine claims 83.81 lifetime mpg with last 90 day average of 220.84, that is just a mistake right?

I am very interested in the PaleCivic, how does he do it? Is it because of Honda's lean burn? How can I get passed 49mpg in my 96 Sentra?

Angmaar · 09-09-2010, 09:18 PM

The main things that influence your MPGs are the hypermiling techniques you use.

Also some of the crazy high MPGs are a mistake. Such as the Camry you mentioned.

autoteach · 09-09-2010, 09:30 PM

p+g amd EOC.

VegasDude · 09-09-2010, 10:47 PM

90% of your gains will not be made with car mods unless you are radically changing the bodywork. You need to change your entire attitude about driving. On my way to work, the highest speed at which I used my brakes was 18 MPH. It would have been lower, but I don't get a full glide to zero MPH when approaching red lights since other drivers would go crazy.

PaleMelanesian isn't just a one tank wonder. Those who post extraordinary mileage and hang around to engage the community and explain how it's done are the real deal 99% of the time.

RobertSmalls · 09-09-2010, 11:17 PM

Quote:

Originally Posted by 96sentra

I am very interested in the PaleCivic, how does he do it? Is it because of Honda's lean burn? How can I get passed 49mpg in my 96 Sentra?

PaleCivic does not have lean burn, and I imagine that even if it did, PaleMelanesian wouldn't use it. (Right, PM?)

My car does have lean burn, and a very lean burn at that. It's also more aerodynamic, lighter, and a plug-in hybrid. Yet PM goes farther on a gallon by hypermiling.

Engine efficiency is at its highest at low RPMs and fairly high throttle. If you want maximum efficiency, keep the engine operating there, and shut off the engine when you don't need power. Like AutoTeach said, "EOC amd P&G".

Also, driving very slowly uses less energy per mile. Thus, low-speed P&G.

user removed · 09-10-2010, 06:37 AM

Pales average speed is fairly low, as Robert mentioned. He also drives a very specific route, that is long enough to somewhat mitigate the cold start enrichment. He also lives in a fairly warm area of the country, and I believe he uses a block heater.

His gas log covers many refills over years.

Also he uses a scan gauge.

He has been coached by one of the best hypermilers on the planet.

He drives in an area with hills that allow extended engine off gliding, with infinite MPG for those glides.

All of his techniques are capable of being duplicated, while others are specific to his location, climate, and terrain.

regards
Mech

euromodder · 09-10-2010, 07:52 AM

Quote:

Originally Posted by 96sentra

I am a long time lurker with a manual 96 nissan sentra 1.6L in the 49mpg tank average range.

By all means, that's already an excellent mileage with a gasoline engine.

Quote:

I have made many mods to my sentra and find it very hard to break 50mpg

It took a while to break 50 mpg in my diesel ...

Quote:

what is PaleMelanesian doing that I am not since we have very simmilar cars?

And driving style .

Check his fuel log for some pointers, it didn't come at once, nor by accident

1996 Honda Civic DX Sedan Gas Mileage (PaleCivic) - EcoModder.com

Quote:

Also rtrt2889 2003 Toyota Camry LE 3.0L engine claims 83.81 lifetime mpg with last 90 day average of 220.84, that is just a mistake right?

Yes.

What mods have you already done ?

96sentra · 09-10-2010, 07:56 AM

Thanks everyone

A couple quick questions,

"EOC amd P&G" thats Engine-off-Coast (which I do) and Pulse-and-Glide (which I do not)
what is amd? or is it just a typo for and?

Does this mean that P&G is more important than EOC in relative fuel savings? How do I do P&G without killing my left leg on the clutch?

Also Old Mechanic mentions "He has been coached by one of the best hypermilers on the planet." who is that person? How can I get a lesson

Thanks

skyl4rk · 09-10-2010, 08:23 AM

EOC is more effective that P&G, If you can EOC, do it.

50mpg is a great accomplishment, congratulations.

euromodder · 09-10-2010, 08:34 AM

Quote:

Originally Posted by 96sentra

"EOC amd P&G" thats Engine-off-Coast (which I do) and Pulse-and-Glide (which I do not)

Yes, yes.

Quote:

what is amd? or is it just a typo for and?

looks like it.

Quote:

Does this mean that P&G is more important than EOC in relative fuel savings? How do I do P&G without killing my left leg on the clutch?

P+G is EOC inbetween pulses, and has been shown to use less fuel than driving at a constant speed - if you can accelerate/pulse without using too much gas, that is.
The gains are to be made in the coasting phase.