Ask Honest John

Most recently answered rust-proofing questions
I drive a Hyundia i20 2011, it's small, compact, great on space, fuel economy and I love it. It's great on the motorways and in the city. The problem is the rust underneath. I now need to start to look...
What is best product to underseal a car?
I have just taken delivery of a new Vespa GTS 300 and want to protect the underneath from rust which they are renowned for. What is the best product to use?
I have a Skoda Fabia, owned from new and 10 years old. As it's Volkswagen Group, it's galvanised and has perfect bodywork. I'm interested in buying a new Suzuki Jimny 4x4, it's built like a tank and very...
Have there been any reports of rusting on the Ford Transit Custom?
Is it worth getting a Land Rover Defender that's undersealed? If it is, would you recommend having the underbody coated in wax or oil?
We will soon be taking delivery of a new Laguna Coupe. Is there a need nowadays to apply a corrosion inhibitor, underseal or whatever in view of the large amount of salt used on the roads in winter? If...
A correspondent recently wrote to you concerning the purchase of a used 2002 Mercedes S Class, both front wings of which began to bubble with rust in 2006, with the same problem occurring in 2008 on the...
 

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 12% on GAP Insurance

Use HJ21 to save on an ALA policy

See offer