Mitsubishi ASX Engine Problems

Mechanically, there’s virtually nothing to separate these two versions of what is essentially the same car. Both have the same power and torque and the transmission is the same CVT. The only real difference that could make the GSR feel a bit frisker than your Exceed is that the former is about 40kg lighter.

Perhaps it’s your perception that is the difference here. The Exceed is the more expensive variant so perhaps it has a little more sound deadening on board. That would help explain the extra mass but could also be making the vehicle sound a little more muted and, therefore, less perky. Don’t rule out the spectre of manufacturing tolerances, either. It’s far less common (and marked) these days, but it remains that some cars are just a bit more powerful than the car that came down the same production line either side of them.

Ultimately, even higher tyre pressures can have an effect on acceleration, but if you can detect these small differences, you are indeed a very sensitive driver.

You need to try and determine where it's coming from. If it's a tinny sort of buzz it could be just a resonance of a part that's perhaps a little loose, and nothing to worry about, but if it's a more solid mechanical noise and appears to come from within the engine itself then it's perhaps best to get it checked out by a mechanic.

The so-called "official" fuel consumption figures are the result of a laboratory test, they're not real life test results and not meant to be taken as such. Their purpose is to give you a basis to compare makes and models by providing fuel consumption figures resulting from tests done using the same consistent test procedure. Fuel consumption is very hard to pin down with any real accuracy because there are so many factors that affect the outcome, so it would be wrong to take a test result like the fuel consumption figures and assume that applies to all situations.