MPG improvement?

[Dickster]

LOL - yeah, the driver and driving habits influence MPG a Lot.
And that explains why every time I get a new vehicle it's great MPG at first, and it goes down hill more each passing year.
The new wears off, I baby it less and today I hit 6,000 RPM on an entrance ramp to get ready to merge into freeway traffic. Just shy of redline, and man did that thing sound sweet. .
My 4.0/242 or 360 would be laying in pieces.

I am completely the opposite. New car under warranty might as well find flaws in the motor...

Sponsored

 

[ShadowsPapa]

I am completely the opposite. New car under warranty might as well find flaws in the motor...

Ya got 5 years or 60,000 miles to do that..............

 

[Dickster]

Ya got 5 years or 60,000 miles to do that..............

Two theories on breaking in a motor. Drive it slow and easy, let parts break in easy. Then there is drive it like you stole it and break parts in the way you might drive. I just drive it reasonably and if I were really worried about Mpg I wouldn't be driving a jeep.

 

[ShadowsPapa]

Two theories on breaking in a motor. Drive it slow and easy, let parts break in easy. Then there is drive it like you stole it and break parts in the way you might drive. I just drive it reasonably and if I were really worried about Mpg I wouldn't be driving a jeep.

To break in an engine, it's a few heavy throttle accelerations - seat the rings. Vary the speed for a while, then drive as normal. An engine is broken in as soon as I deliver it to a customer. I tell them vary the speed for a couple hundred miles, don't use cruise control, accelerate heavy without over-revving a few times and it's good to go. Drive as normal.
There's no real breaking in. In 5 or 10 minutes, I've got it broke in and turning it over to a customer.

If an engine isn't done with ring seating, etc. in the first 2500 miles, it's not going to get better.
This is from a college book on engine building. I pretty much still follow a similar process. Built it, start it, warm it up while I check for leaks, etc. - drive it to run-in the rings, let it go.

I don't worry about the engines in new vehicles, I just like to keep things nice and pretty for a while. The engines are already broke in.

 

[ShadowsPapa]

LOL - love it when city folks try to explain ag things.
Might as well compare Georgia peaches to California's tomato crops. Sweet corn vs. "field corn", different crops, different seasons. I believe the corn used for ethanol and for cattle feed is somewhere in the 5 to 6 dollar a bushel range now.
Roughly takes 112 eight inch ears of corn to equal 1 bushel.
So compare 112 ears of corn for $6.00 to your sweet corn.
About 5 to 6 cents an ear for corn used for cattle feed, corn flakes and ethanol.

Sweet corn has nothing to do with ethanol. Yeah, the word corn is tossed around, but it's a very different crop. Even the plants look different if you know what to look for.
Sweet corn comes on in this country in a short span of time - and it doesn't store well at all. You pick it and you eat it that week or it's crap. (or you can it or freeze it and then it's still different than fresh)
I get sweet corn free each season - which here the season is about over. And those who buy it pay the supply and demand prices. It's not cheap to grow, takes a lot of land and is hand picked if you want it on the ear.

Anyway, if anything ethanol content would be on the rise because it's so much cheaper than gasoline, especially in the current -uh, economic climate and with the restrictions on fossil fuels - won't go there.
It's cheaper and there are tax incentives for using it.
Naw it's not a change in that.

 

[Gordo]

Don’t trust the vehicles computers for accurate numbers.

Do the math for yourself

 

[ShadowsPapa]

Don’t trust the vehicles computers for accurate numbers.

Do the math for yourself

I guess you've missed where several of us have shown the numbers on the cluster display are accurate IF you have either not changed tires, or have changed tires and used an accurate number in the settings.
I've compared the numbers from the Jeep cluster MPG to my phone app - which is the same as doing it with pencil and paper - and time after time it was close, within tenths - and if you average it out over multiple tanks, it is accurate.
It may not be if you compare only one tank at a time because as I've explained multiple times - it's humanly impossible to get the exact same amount of fuel in that tank each time. Where you park the truck, the air temperature, temperature of the fuel in your tank, temperature of the fuel from the station's tank and other factors all come into play. You may THINK you are stopping at the same place when you stop filling but you are not.
So this time the Jeep may say 19.5 and your hand calculations or phone app say 19.2, then next time the Jeep says 19 and your app or pencil calculations say 19.4 and so on, but take 5 tank fills and average the cluster readings then average the app readings and compare and they'll be extremely close. Rounding generally will account for a tenth or two difference.
I've compared numbers on two JTs now and have shown that over time - not ONE TANK at a time, but over time, if you take the average of the cluster mpg readings over the last 5 tanks, and the average of your own pen and paper calculations over the last 5 tanks, they'll closely match. Mine were often almost exact.

If yours isn't accurate, you may have a settings issue.

 

[obrianmcc]

I am ignorant of the difference between summer and winter blends. Never would have thought of that factor. Thanks.

I think this variable differs by region ... IDK. I do know that here in the PNW with my last three rigs I have consistently seen a 2-3 MPG difference between Winter and Summer.

 

[Minty JL]

For the first 20 months I owned my used when purchased 2020 JTR, I averaged about 19.8 mpg. The last 2 months, my gas mileage has improved to 20.6 mpg. I’m at 33,000 miles. Been driving the exact same daily routes all this time. I’ve made no alterations in driving technique, using the same gas, haven’t altered the build with respect to weight. The only mods I’ve made recently are installing an oil catch can and a Baxter cartridge to spin on oil filter adapter. I’m happy for the improvement but stumped as to the cause. Any thoughts?

I have those 2 mods next on the list for me; just installing for longevity.....but nothing wrong with some french benefits

 

[MPMB]

To break in an engine, it's a few heavy throttle accelerations - seat the rings. Vary the speed for a while, then drive as normal. An engine is broken in as soon as I deliver it to a customer. I tell them vary the speed for a couple hundred miles, don't use cruise control, accelerate heavy without over-revving a few times and it's good to go. Drive as normal.
There's no real breaking in. In 5 or 10 minutes, I've got it broke in and turning it over to a customer.

If an engine isn't done with ring seating, etc. in the first 2500 miles, it's not going to get better.
This is from a college book on engine building. I pretty much still follow a similar process. Built it, start it, warm it up while I check for leaks, etc. - drive it to run-in the rings, let it go.

I don't worry about the engines in new vehicles, I just like to keep things nice and pretty for a while. The engines are already broke in.

My dad grew up in the late 50s and early 60s, swapping cars like an ADHD kid. He said the first time he'd buy a new car, he'd take it out on some straight stretch and flog the s**t out if.

I try to not get heavy on the throttle with a cold engine... but sometimes the temptation is a bit strong.

Sponsored