Ask Honest John

Most recently answered maintenance questions
Does the Ford Transit Custom have problems with dual mass flywheel. If so at what mileage?
Should the panels underneath the car be removed for anti-rust treatment or should they be left in place due to sensitive sensors which they protect?
I changed the oil in my car, ran an engine flush, drained it and then put in new oil. However, now the oil has that awful emulsification - how did this happen? There was absolutely no emulsification in...
Is the DPF on a Fiat 2.3 Multijet engine expensive to replace?
I have a March 2018 BMW 530i. Can you please advise on the recommended time interval before changing the antifreeze? I thought it was every six years but the guy who services my car said he thinks it was...
Should you put grease on battery terminals to protect from corrosion?
I own a 2007 Volvo XC90 with 118k on the clock. Lovely motor and mostly trouble free but it's recently started missing the odd beat and intermittently going into limp-mode. The other day, when in limp-mode,...
I have a 2022 Ford Focus and the washer bottle appears to be blocked with gunge, but I can’t get access to it easily. I would have tried the hosepipe method but it is in a tight position under the bonnet...
My car was last serviced in February 2022 (Full Service) and since then I have done just 1500 miles. Your opinion: do I really need to have a small service / oil change service every 12 months as VW keep...
I have a Volkswagen Golf 2.0 TDI and will be going abroad for between 4 to 6 weeks with my car parked on my driveway. No one else will be in the home when i'm away so I won't be able to trickle charge...