Ask Honest John

Most recently answered changing oil questions
My BMW 3 Series 320D 2008 (72,000 miles) has just shown an increase in the oil level over the maximum. This is on the car's computer and not the dipstick which I have yet to check. My driving consists...
I have a Skoda Superb estate L&K with a 2.0-litre SI engine and I have just put a pint of oil in the engine after doing just 2800 miles. Is this normal or excessive? Also is it normal for tyres to slightly...
I have recently topped up Halfords Opel Engine oil (petrol) into my Volkswagen Golf (diesel). This was for fill up, I topped up about 0.75 litre to 1 litre. It wasn't exactly the right oil. I have noticed...
My 2.0-litre EcoBoost petrol Ford Mondeo is in for a three year service, 17,000 miles. The garage has called me to say Ford recommends a change of oil and filter on the Powershift auto box too. Is this...
Which oil is best: Castrol Magnatec or Edge
Following a previous question about Castrol having the sole rights to oil for the Jaguar XF, I now notice that both Shell (Helix Diesel Ultra AF-L 5w-30) and Millers (XF Longlife C1 5w-30) are claiming...
I have recently had the first service on my 2012 Kia Cee'd SW (1.6 diesel, manual gearbox). I was very surprised to note that this service did not include an oil and filter change. On checking with the...
Can you tell me why my Mercedes-Benz is using so much oil? It’s a 2007 C-Class automatic with 39,000 miles on the clock, but it is now consuming 2.5 litres per 5000 miles. Do I have a problem?
I am about to drive about 3500 miles in my new Aston Martin Vantage 4.7-litre manual. The oil level is half way, should I keep it at maximum or just below at all times?
I'm now a vintage motorist. When I used to do an oil change a gallon of GTX cost me £8. Now I'm told my new Seat Leon needs Castrol Edge Professional, which costs a staggering £46 a gallon. My wife had...
 

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