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In a semi truck are lower gear ratios going to give better highway mileage per gallon?
Wiki User
∙ 14y ago
No, the lower the gear ratio, the higher the rpm of the crankshaft verses the rmp of the drive shaft, thus more torque. In order to obtain higher torque, the higher the engine rpm and thus the more gas needs to be burned. The reason why Nixon instated 55 mph as the national speed limit is because the highest gear ratio of car (except those with overdrive) was still too low and because of air resistance. Today, cars and semis have wider gear ratio ranges and are more aerodynamic.
Wiki User
∙ 14y ago
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Best Gas Mileage?
In poor economic times, fuel economy and car efficiency is very important to the consumer. Gas prices upwards of $4 a gallon is unacceptable and too pricy for many people. Demand has risen for fuel efficient vehicles that allow the consumer high mileage per gallon ratios to alleviate fuel costs. The highest gas mileage two seater hybrid vehicle is the Smart ForTwo Electric Drive Coupe that gets 94 miles per gallon, while the best mileage per gallon vehicle is the Nissan Leaf that gets 106 miles per gallon.
What are proportional ratios?
They are ratios like 2 over 1 that would represent 20 gallons to 1 gallon sugar
What does the CVT transmission do?
CVT stands for continuously variable transmission. This is the type of transmission that can switch between an infinite number of gear ratios steplessly. In doing so, the CVT provides better gas mileage.
Nissan Leaf's Impressive Number?
With the price of oil going up at a steady pace, consumers are looking at ways to save money on fuel economy. Many cars and hybrids offer the drivers extremely high mile per gallon ratios that save the consumer a lot of money. In 2011 the most fuel efficient car was the Nissan Leaf which has an astounding 106 miles per gallon for city and 92 miles per gallon for highway.
Semi truck gas mileage?
Between four and nine MPG, depending on factors such as weight, terrain, gear ratios, etc.
Does the trx400ex have reverse?
Yes it does. And better forward gear ratios
How do you compute ratios in airline business?
I've heard of price often being compared with passenger mileage to compute proper ticket price.
What is the fuel to oil ratio on a Yamaha kt100?
Anywhere from 16:1 (8 oz. of oil per gallon) to 20:1 (6.4 oz. per gallon), the lower ratios are better when using castor oil blends; with synthetics like Redline two stroke racing oil, 18 or 20:1 works well. 7 oz. per gallon (18 oz. per gallon) has worked for me for years using Redline.
What is deffrent between mileage and ECM mileage in semi truck?
ECM mileage is based on the number of transmission output shaft rotations, and is calculated along with the programmed rear end gear ratio, transmission gear ratios, and revolutions per mile for the programmed tire size. Actual mileage will vary according to tire wear... as your tires wear down, the actual mileage you travel will decrease.
What is the average gas mileage for a jeep cj7?
With proper gear ratios and maintenance you should get around 17 MPG with the 258 cid and about 12 MPG with a 304 cid.
Would you get better gas mileage in your 03 S-10 from a 6-speed trans or the stock 5-speed with 410 gears?
It all depends on the final drive ratio of the highest gear in the transmission. This varies in transmissions of the same type ie:a t-56 depending on the original use, the best thing to do is to get the casting numbers off of the trans you want to use and Google it you will be able to find a list of gear ratios for that specific trans. You can also research the type of trans you want to use and see what ratios where used then pick the best one for your application and start looking either way it is not the number of gears but the ratio of the highest gear that will determine your highway milage
What are equivlent ratios?
when a number of ratios give the same answer after solving the ratios the ratios are said to be equivalent ratios
