Which Oil

[93kdx125]

I have just purchased a 1992 125cc KDX from a friend at work, he has owned it from new with 11,500 miles. It has been run on fully synthetic oil castrol TTS from new. I will continue to use this product too. Has anyone heard that Castrol R30 oils can be used in the petrol tank 50ml for every 5lts of fuel, this allegedly also helps in lubricating the top end of the engine. Any comments from you guys before I take the plunge!! apparently this oil gives off an aroma which is used in race engines!!
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[migsy]

R30 or R40 was made for four stroke engines it is very thick and not to be used in a auto lube system. It's main use these day's is for old classics. It can be mixed with petrol but this was done many years ago as quality two stroke was not available. It is best to stick with TTS Castrol as I use it on all my two strokes and proves to be the best and smells just as good as castrol R.