Are Tesco Going into the Car Repair Business?

I have to admit to a case of Schadenfreude over the contaminated petrol damaging peoples engines after purchasing petrol at Tescos. Oh how I chuckled at the thought of all the people using the evil empires forecourts. but it also got me thinking "Is this a precursor to them going into the car repair business?" It wouldn't surprise me. Anyway, seeing as I don't use supermarket petrol stations, it appears I will be able to partake in my guilty pleasure for a while yet.