Ask Honest John

Most recently answered engine care questions
In 2012 our older brother bought a tatty 2003 Porsche Carrera 996. He had the engine completely rebuilt and was well into the restoration when he got ill. It seems he's not going to get well enough to...
Is it okay to clean the DPF filter with Mr Muscle oven cleaner and then put it back? It’s a lot cheaper than replacing it but does it do the job? I have a Vauxhall Vectra 1.9 DTi that’s done 120,000 miles...
I have a Ford Focus 2016 1.0 Ecoboost which has done 10,000 miles. It's being standing for about eight weeks due to ill health. It has been started now and then but not moved. Today I drove it but when...
Are all cars with turbos problematic? I keep reading about turbo failures which puts me off buying a new car with a turbo. Do you have to treat these turbo cars in special ways, particularly after a long...
 

Value my car