Do you recommend using a higher grade petrol like Shell V-Power?
Having read your columns for many years I notice how you advocate the regular use of higher grade petrol. I have a Skoda Octavia Scout 1.8 TSI and inside the fuel door there is a label that says use 95 RON/91 ROZ. I have just seen that Shell V-Power claims 99 RON. Do you still recommend the higher grade? Also can I ask if it is OK to use mineral oil in the engine rather than fully synthetic as it is noisy on start up?
Asked on 29 June 2017 by Charing
![](http://images.honestjohn.co.uk/imagecache/file/pad/120x120/media/16477727/537450_458533677529584_1473549666_n.jpg)
Yes. The higher octane gives more torque at low RPM and the additives keep the engine fuel system clean which is particularly important with a Direct Injected petrol engine like yours. The noise on start up might be the timing chain starting to fail. You can't fix this with oil. Probably needs a new chain.
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