1. C

    90/110 fuel economy

    25 to 1 sounds like it might smoke a little ?
  2. C

    90/110 fuel economy

    Sorry engine is a 2.5 na
  3. C

    90/110 fuel economy

    Have been using this mixture for 3 years no problems
  4. C

    90/110 fuel economy

    run it on heating oil half a litre of engine oil mixed with 25 litres of 28 second heating oil