Does my Toyota C-HR need premium oil and fuel system cleaner?

I've booked my 2019 petrol Toyota C-HR in for a 60,000-mile service and have been quoted an extra £40 for them to use premium oil and a fuel system cleaner. They explained the cleaner goes into the fuel...

My oil warning light came on after 5000 miles - should I be concerned?

I bought a new Golf at the end of 2018 which I intend to keep long term. It drives very nicely but after 5000 miles the oil warning light came on, I topped up with synthetic 0/20 grade oil, about 500 ml...

What's the best grade engine oil to use in my car?

My petrol-engined Toyota Yaris Verso runs happily enough on 5W/30 semi-synthetic oil. It returns about 1600 miles per pint of oil. With 135,000 miles on the clock, would the engine benefit from an additive...