Cars & Vehicles
VW Jetta
Fuel Economy and Mileage

If a car has a 3 liter engine does this mean that it has a higher top speed of a 2 liter engine or does is just mean that it can hold more fuel?


Top Answer
User Avatar
Wiki User
2015-07-16 18:06:35
2015-07-16 18:06:35

To answer your two-part question: Not always and no.

A 3-liter engine is a larger engine than a 2 liter. The size is determined by calculating the volume of each cylinder and multiplying that value by the number of cylinders the engine has.

An engine is essentially a pump. Since a larger engine can pump more air/fuel mixture, than it can make more power which will provide a higher top speed, unless other factors interfere (speed limiter, etc)

A car with a larger engine cannot 'hold' more fuel. fuel is 'held' in the gas tank.

back in the '50s & '60s it was pretty easy to figure out that cars that had more displacement (cubic inches) had more power. Because of advances in engine design, this is no longer the case. Variations in compression ratio, force induction (supercharger & turbochargers) can make a small displacement engine put out more power than a large displacement engine. These days it's entirely possible for a small hatchback with a 4 cylinder engine with less than 1.6 liters to put out more power than a V8 with over 5 liters.


Related Questions

User Avatar

2.5 liter engine is smaller and more fuel efficient. 3.5 liter engine is a strong engine with better acceleration, but is less fuel efficient

User Avatar

If you mean hunting at idle, the problem is caused by the idle speed being set too high or the idle switch is not properly adjusted. When the throttle is closed as indicated by the idle switch the fuel is cut off by the fuel cut solenoid until the engine speed drops below a preset speed. If the engine speed is higher than that speed and the idle switch is closed there is no fuel for the engine, thus the engine speed drops. When it drops below the preset speed the fuel is turned on and the engine speed goes back up.

User Avatar

Yes , the 3.0 liter " Vulcan " V6 engine ( and its flex fuel version ) and the 3.0 liter " Duratec " DOHC , V6 engine are fuel injected

User Avatar

The 2.4 liter engine does not consume a lot of fuel compared to larger engines like the 5 liter. This engine is considered to be fuel efficient in newer vehicle models.

User Avatar

The fuel consumption improves on only one engine since the engine speed is higher thus higher compression thus higher efficiency (assuming altitute remains teh same).

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.