High RPM's on highway and want lower RPM's

Digs1022
0

Asked by Digs1022 Dec 07, 2012 at 03:50 PM about the 2001 Volkswagen Jetta GLS VR6

Question type: Maintenance & Repair

Have 2001 Jetta with VR6 engine. Have high RPM's on the interstate and want lower RPM's. RPM's are at 3000 Highway and 2000 in town. want to lower RPM's to gain fuel mileage. Can I do that?

5 Answers

Michael Mierzejewski
2,370

Other than changing the gearing, you cant change where the engines powerband is. Try adding some aftermarket items like a performance intake and exhaust system, and keeping you oil fresh and you car tuned up.

Andrew Olsen
8,445

3000 highway isnt bad, they only was to change it is as said but changing the diff in the transaxle.

Daniel Adams
5

Although it may seem that you get better fuel economy with lower RPMs, it is not necessarily true. It deals with how hard does the engine have to work to keep it in motion. Efficiency is equal to the amount of output energy / total energy. The higher the RPMS, typically there is more power/torque. For the sake of this instance, we will equate it to more potential energy. The required work output is variable dependent upon ones speed and resistance. At higher speeds, you need more energy to maintain motion since resistance (air friction) is higher. Therefore you need a greater potential energy to achieve a better efficiency. That explains why the RPMs are higher, from a production point of view a manufacture develops what will work for the average consumer who travels typically between 50-70 mph on the highway and will need the additional power to handle winds or slight inclines. Yes, a better efficiency can be attained if one can do the math for your specific commute. The gains would probably be marginal and the engine RPM may rise for some individuals (more hills and/or more air resistance) and lower for others (flat, low air resistance).

Dusan Duric
25

You can put slightly taller tires as in 225/50/17 which will slightly lower your rpms and torque since the wheels will have a longer rotation.

1 out of 1 people think this is helpful.
Rado Zet
175

try slowing down, this usualy keeps the revs down ;)

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Jetta
Looking for a Used Jetta in your area?
CarGurus has 35,613 nationwide Jetta listings starting at $988.
ZIP:

Search Volkswagen Jetta Questions

Volkswagen Jetta Experts

#1 Tom Demyan
Tom Demyan
Reputation 830
#2 Scott Sr.
Scott Sr.
Reputation 800
#3 Goodwrench707
Goodwrench707
Reputation 640
View All

Related Models For Sale

Used Volkswagen Passat"
486 Great Deals out of 27,014 listings starting at $1,850
Used Honda Civic"
1,018 Great Deals out of 65,004 listings starting at $1,599
Used Volkswagen Golf"
64 Great Deals out of 4,761 listings starting at $2,500
Used Volkswagen GTI"
105 Great Deals out of 4,269 listings starting at $3,450
Used Honda Accord"
1,078 Great Deals out of 61,554 listings starting at $900
Used Toyota Corolla"
1,135 Great Deals out of 52,349 listings starting at $1,957
Used Nissan Altima"
1,303 Great Deals out of 84,082 listings starting at $1,495
Used Volkswagen Beetle"
205 Great Deals out of 10,173 listings starting at $2,000
Used Toyota Camry"
1,497 Great Deals out of 78,366 listings starting at $1,200
Used Audi A4"
358 Great Deals out of 10,446 listings starting at $1,795
Used BMW 3 Series"
1,402 Great Deals out of 35,070 listings starting at $1,000
Used Ford Focus"
913 Great Deals out of 56,266 listings starting at $1,495