Are fuel additives worth it?

Do you recommend any diesel additives? My 2011 Nissan X-Trail 2.0l dCi has done 115,000 miles and is serviced every year but the mpg seems to be getting worse.

What's the most economical hybrid SUV?

I am interested to know which hybrid SUV has the best MPG?

Will fitting mudflaps affect fuel economy and road noise?

I’ve recently purchased an Audi Q5 and am considering fitting mud slaps as the sides of the vehicle dirty up quickly in wet weather conditions. Would such a fitting effect the fuel consumption and road...

Why does my hybrid give better economy in the summer?

My Yaris Hybrid can touch 80mpg in summer but drops down to about 60mpg in winter. Any reason for that?

Do plug-in fuel saving devices actually work?

Can the 'Eco-Chip' fuel saving device plugged into the OBD2 socket cause damage to vehicle systems, including PHEVs?

Which petrol car has the best MPG?

I am looking to purchase a 3-4 year old car. What is the best petrol vehicle that provides 55 miles to the gallon?

Is my Honda Jazz Hybrid delivering the right fuel consumption?

I bought my new Honda Jazz from a main dealer in 2022. The main reason I decided to change from my previous three-year-old year old Jazz was the expected over 60mpg. For the first several weeks the car...

Can you recommend a reliable and efficient used car for £10,000?

I want to upgrade my 2006 Toyota Corrolla. I have £10,000 to spend and require a reliable, stylish and economical car that will accommodate my wife and daughter. My daily commute is 30 miles and I also...

Best £16,000 hatchback for comfort and fuel economy?

I am looking for a petrol automatic five-door hatchback that is not a crossover, too large or firm riding. The car must be comfortable, well-equipped, reasonably economical, reliable and ULEZ-compliant. Are...

Are PHEVs expensive to run and maintain?

I haven't seen any discussion on maintenance costs for PHEV. Presumably, it must be quite expensive since you are maintaining an EV plus an ICE?