A cure for the Super-unleaded Problem !!

A cure for the Super-unleaded Problem !!

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HIGHLANDER

Original Poster:

48 posts

279 months

Saturday 1st September 2001
quotequote all
As Superunleaded is becoming more difficult to find in the UK my recommendation is :- 1. Use Superunleaded where available 2. Buy Millers Octane Plus additive and add to normal unleaded. This boosts octane by around two points so will take 95 RON to 97 RON (current rating for Superunleaded, used to be 98 RON as recommended by TVR) Costs about £3.00 for a bottle which does 50 litres i.e. a tankfull. As Super is approx. 7p/litre more expensive than Unleaded it even works out slightly cheaper ! 3. If you are experiencing ''pinking'' problems on Super try adding octane booster to increase to 99 RON. 4. Millers have tested product with all brands of petrol and recommend using Shell fuels for best results. Hope some TVR owners find this info. of use - seems very handy for top ups where S/Ul N/A in the UK or in Italy where no service stations stock higher grade fuel.