Ford/Chevy mileage

Lynnmor wrote:

Grit dog wrote:

Lynnmor wrote:

4x4ord wrote:

What you are saying is not true. I don't understand all of the difference between 3.55 and 3.31 gearing

That right there is the problem. I tried to help, but you would do well to read the manual before discrediting others.

You'd do well to think before typing as well.
In your previous post you alluded that the different gears were negated by different tire sizes! That would make no sense to offer different gearing then.
Plus you inferred that the rim diameter somehow affects rolling diameter. (Because rim size doesn't have a dang thing to do with gearing or mileage. )
There are no different injection cycles either.

More silly rvnet babble....

It is hard to believe that there are those that cannot understand that tires of a larger circumference coupled with gearing that is lower by the same percentage gives an end result that is the same. Childish remarks show an even greater lack of intelligence.

Well said....

Grit dog wrote:

Lynnmor wrote:

4x4ord wrote:

What you are saying is not true. I don't understand all of the difference between 3.55 and 3.31 gearing

That right there is the problem. I tried to help, but you would do well to read the manual before discrediting others.

You'd do well to think before typing as well.
In your previous post you alluded that the different gears were negated by different tire sizes! That would make no sense to offer different gearing then.
Plus you inferred that the rim diameter somehow affects rolling diameter. (Because rim size doesn't have a dang thing to do with gearing or mileage. )
There are no different injection cycles either.

More silly rvnet babble....

It is hard to believe that there are those that cannot understand that tires of a larger circumference coupled with gearing that is lower by the same percentage gives an end result that is the same. Childish remarks show an even greater lack of intelligence.

Lynnmor wrote:

4x4ord wrote:

What you are saying is not true. I don't understand all of the difference between 3.55 and 3.31 gearing

That right there is the problem. I tried to help, but you would do well to read the manual before discrediting others.

You'd do well to think before typing as well.
In your previous post you alluded that the different gears were negated by different tire sizes! That would make no sense to offer different gearing then.
Plus you inferred that the rim diameter somehow affects rolling diameter. (Because rim size doesn't have a dang thing to do with gearing or mileage. )
There are no different injection cycles either.

More silly rvnet babble....

Cummins12V98 wrote:
If you are looking for mileage any RAM/Cummins/Aisin/3.42 combo will give the best mileage.

Gee, I didn't see where he asked anything about Fiats.:B

4x4ord wrote:

What you are saying is not true. I don't understand all of the difference between 3.55 and 3.31 gearing

That right there is the problem. I tried to help, but you would do well to read the manual before discrediting others.

Lynnmor wrote:
A Ford 6.7 has two different gear ratios available. With 18" wheels you get 3.31 and with 20" wheels you get 3.55. Both setups turn the engine at the same speed and no difference in mileage can be expected.

There is one exception, with the snow plow prep package you can get the 18" wheels and 3.55 gears. This is the best for pulling power and the front suspension will be the same on a F250 as a F350.

What you are saying is not true. I don't understand all of the difference between 3.55 and 3.31 gearing but it won't surprise me if the trucks are set up with different software for the injection cycles. the owners manual even gives an estimate for how far the truck will travel on a tank of def. They state something like 20% further range on the 3.31 ratio trucks.

rhagfo wrote:

Cummins12V98 wrote:
If you are looking for mileage any RAM/Cummins/Aisin/3.42 combo will give the best mileage.

Ron, seems the OP still thinks Rams are his farther’s Dodge. I switched from Ford to Ram after 44 years as a Ford only owner. Granted mine is pre-emission engine I can easily get 20+ mph highway and 15 mph city. Just because it is only a six doesn’t mean it doesn’t produce big power.
Just curious why the OP doesn’t include Ram in his thoughts.

There was a guy on here not long ago that looked at RAM after encouraging him to do so even tho he was planning to buy one of the other. He ended up with the RAM and was very surprised at the price and quality of build.

I get lots of PM's asking about my truck or RAM/Cummins in general. Not all buy RAM's but several have.

Just like me suggesting B&W, at least compare them side by side.

Cummins12V98 wrote:
If you are looking for mileage any RAM/Cummins/Aisin/3.42 combo will give the best mileage.

Ron, seems the OP still thinks Rams are his farther’s Dodge. I switched from Ford to Ram after 44 years as a Ford only owner. Granted mine is pre-emission engine I can easily get 20+ mph highway and 15 mph city. Just because it is only a six doesn’t mean it doesn’t produce big power.
Just curious why the OP doesn’t include Ram in his thoughts.

A Ford 6.7 has two different gear ratios available. With 18" wheels you get 3.31 and with 20" wheels you get 3.55. Both setups turn the engine at the same speed and no difference in mileage can be expected.

There is one exception, with the snow plow prep package you can get the 18" wheels and 3.55 gears. This is the best for pulling power and the front suspension will be the same on a F250 as a F350.

Nothing is going to get good gas mileage while towing a travel trailer. Think about what you are doing. You are pulling an unfurled sail behind you. In years gone by, they used that very principle to propel ships across oceans using winds that were not particularly high!

Also, keep in mind that a TT weighing 6,000# will take a whole lot more fuel than a car hauler trailer carrying an El Camino that weighs in at 6,000#.