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Absolutely Brian, I dump my two stroke fuel after about six weeks, often before.
The volatile parts of unleaded petrol disappear really quickly unless it's stored in a steel, airtight container. HDPE (plastic) fuel jugs and tanks are pretty porous to the aromatic/volatile compounds in the fuel.
My BMW 735 sat on the drive for 9 months, never started, put the battery back in and started instantly, I put that down to a good car, but the old petrol seemed to make no difference whatsoever.
i decided to try out the 2 stroke in the fuel mix on my last trip adding 200-1 mix of castrol t to my fuel
last time i went to melbourne from hervey bay i was getting about 920 km from 88-90 litres with the 2 stroke oil i was getting 950 km to 80 litres sitting on 100-110kph most of the time the one tank i didnt put it in i went back to 900km from 88 litres so as far as im concered over a 6 fill trip going from hervey bay to gisborne then melbourne then ballarat, melbourne ,lakes entrance , merimbula , hervey bay via goondawindi then across to lismore due to the floods then home i will definatly keep using it on trips . with each tank i went through a major city like brisbane ,sydney ,melbourne ,canberra :cool:
OK, people have mentioned 2 stroke oils (air cooled??) and marine 2 stroke oils.
Stupid question what does every one use and why? :confused::confused:
I started using a 2 stroke oil it was ok the first tank, the second it started smoking (used the recomended dose) quite heavily on takeoff and medium acceleration around corners. Once started under load not much to see. If any? Changed back to the standard ecu and it still smokes lightly. never used to before even with the chip.
Definately quieter.
Tony :wheelchair:
I remember back in my Go_Kart racing days my engine builder used to warn against using too much oil in two strokes. this would cause what they called a cold seize.
The theory went that by adding extra oil you would in fact be leaning the engine out too much by upsetting the oil/fuel ratio.
Seems logical this may apply to additives in diesels as well?
Have tried 2stroke over about 4 tankfuls now, First tank I saw an improvement of 80km over my average distance / tank. The last 3 tankfulls have had no improvement on economy when compared to original economy before adding 2T. Performance seemed to be the same.