Engine Oil

[Tim Collis]

Dear members,

I hope everyone is well. I am enquiring about engine Oil. The price difference between fully synthetic and semi-synthetic for the required 5W-30 is quite noticeable and I would appreciate advice on what the difference is and whether the additional price is worth it?. My car has done just over 206,000 miles and uses I think probably a little more than when the engine was less worn. Just looking at a website called carparts4less (I'm not paying the rip-off £8.00 or more for half a litre as charged by most petrol stations), and 5 ltrs of semi-synthetic is £16.27 compared to from £37.88 upwards for fully synthetic. 

 Thanks very much,

Tim.