Should we use diesel additive in our engine to keep it in good condition?

We are focusing on news regarding fuel additives for use in diesel engines. With diesel cars now over 50 per cent market share in the UK, and very significant numbers in use, there's a valid story concerning...

Has Ford overcome the DPF problem by using an additive in its diesel engines?

I have followed with interest your comments on DPF problems. I have not experienced these with my own 2009 Volkswagen 2.0-litre turbodiesel, although at 8000 per year I still avoid too many short runs....

What is causing my daughter's Ford Ka to over-rev when idling?

My daughter has a 2004 Ford Ka. It has developed an intermittent fault whereby it will often over-rev when idling or rev in "pulses" as if someone is fanning the throttle. It has now also started running...

What could be causing my daughter's Ford Ka to over-rev when idling?

My daughter has a 2004 Ford Ka. It has developed an intermittent fault whereby it will often over-rev when idling or rev in "pulses", as if someone is fanning the throttle. It has now also started running...

Can I recommend Dr Tranny Lubeguard Instant Shudder for autobox oil changes in the Land Rover Discovery 3?

I noticed in your column at the weekend some advice to someone about a judder and an autobox oil change. This is becoming a more frequent problem in the Discovery 3. Dealers will do a double flush of the...

What's causing our 20-year-old Audi 80 to lose power?

We are the proud owners of a 20-year-old Audi 80 TDI (bought from new), now with 174,000 on the clock. Over the past year it's lost much of it's pulling power. It struggles with even the slightest inclines...

Which fuel additives can I use in my Audi TDi?

When I looked up the Platinum Plus additive on Google it threw up several other additives also. All claimed to decrease fuel consumption, give smoother running and aid the DPF. Those mentioned were; Millers...

Quick fix for my Jaguar XF's DPF fault.

My Jaguar XF 3.0D kept coming up "restricted performance" and yes I have been using it for short runs. However, I got a bottle Forte turbo cleaner and a bottle DPF cleaner and put them in the fuel tank...

Where can I get my Eolys fluid replenished in my Peugeot 307 and Ford Fiesta?

Some time ago you responded to a letter from a company that used some kind of additive in their diesel fleet vans. I think it was about £65 to buy but you only put in a small amount each time and it saved...

Where can I get Platinum Plus DPF additive?

A few weeks ago a reader recommended Platinum Plus treatment for DPF problems. I am unable to locate a supplier of this product. Can you please let me know the details of where I could purchase this product....