Rotax 912

[blakemorem]

It appears that the 98 BP ultimate is killing the fuel tank fuel inspection drains,rubber seals are deteriorating causing leaking on three MTO"s I Know of

[RickE]

I have been using 98 in my mto sport for the past two years and haven"t had a problem with seals etc as yet. I did however see one other mto that did have a problem but then found out that they had been using E10.I don"t know the difference but I do try and use Caltex 98 whenever possible. Be interested to hear other peoples experiences.

[Russell]

98 has caused some grief with other folks as well, 95 seems to be less problematic,

[RickE]

When I am away on trips I regularly mix Avgas with 98 and to date have not had a problem. I do however run all fuel through a mr funnel and if I use more than a couple of tanks of Avgas on a trip will change the engine oil as soon as possible.

[Brian]

Been using BP Ultimate for a couple of years now