Automatic mpg vs manual mpg

I had a Pontiac that was very smooth shifting as was the Buick that I owned. On the other hand, my Pontiac and Rambler shift linkages were terrible. There were conversion kits to convert the column shift to a smoother shifting floor shift.

The automatic transmissions also improved in acceleration about this time period. The Chrysler Torqueflite did very well in drag races against a similar car equipped with a manual transmission. The heavy duty 4 speed manual transmissions of this time period were a different story. These transmissions were designed for drag racing. There is no problem with submitting numbers less than what really happens if the corporate goal is met.

EPA mileages, like always can be taken with some skepticism. It may be possible that some mfrs offer a manual trans for those that insist but want to steer people to automatics as there is more profit with an automatic. Personally, I belive that a manual always gets better fuel mileage than an automatic.

Then there are the shift points. Your second reason theft prevention can be mitigated with a good alarm system and LoJack or something like it. I am a professional driver although I have changed careers.

If they have time to try to steal your car and get frustrated because of the manual transmission, they have time to delete your windshield and key your paintjob. Let us not forget the factor of the newer CVTs. Instead of being equal to a manual shift car in terms of gas mileage, a driver with a CVT can actually achieve better gas mileage than even a skilled manual shift driver.

Case in point is the new Subaru Outback. Most drivers of the Outback CVT models routinely report 30 mpg on the highway, with many reporting 33 mpg on long highway trips—which is pretty darned good for a boxy vehicle weighing over 3, lbs. While I would be reluctant to own one of these vehicles with a CVT, due to lack of long-term reliability statistics, the fact remains that they can achieve better gas mileage on a day-to-day basis than would be possible with a manual trans.

This is a little off the subject but it involves manual vs automatic transmissions. Hazmat Driver. Dec 6, 1. Currently I drive a automatic Volvo. I get 7.

I'm looking to get a manual Volvo but I'm told there is difference in fuel mipage, where the auto gets more. I don't see how as this thing is crap going uphill, always slowing down uphill empty or not and it shift like two to three times. What you guys getting for your standards? Electronic Cowboy , Dec 6, Wait, employers can't reach you! By checking this box and clicking the "Send me job offers" button below.

I understand that my consent is not required to get job alerts. Dec 6, 2. I'm in a 12' KW getting around 7. JoeBear , Dec 6, Electronic Cowboy Thanks this.

Dec 6, 3. I drove a cascadia with 10 sp, going 68 mph, and gets 7. When cruising on us route 30 in oh at 64 mph, it gets 8.

Dec 6, 4. Dec 6, 5. In a car application a manual trans always did better because of the slippage involved. They came out with lockup converters to take care of the slippage in high gear. Like brian said it takes a skilled driver too maximize fuel economy and know the torque sweet spot of his engine. Here, We considered only one variable am to explore mpg The boxplot shows that there is a difference in the MPG by transmission type.

Manual transmission seems to have more miles per gallon than automatic transmission. Let's do a simple Liner Regression model here. To begin our model testing, we fit a simple linear regression for mpg with only one regressor am. Null hypothesis: There is no difference in the mean MPG for automatic and manual transmission.

To choose the appropriate covariates for the regression model, we did covariate adjustment and multiple models to prob the effects. Before that, let's look at the corrlation for mpg variable of our dataset mtcars.

In addition to am which must be included in our regression model to campare the two types of transmission , we see that wt , cyl , disp , and hp are highly correlated with our dependent variable mpg.