I have been told mogas, 98, 95 and 91 cannot be mixed with 100LL. Is this correct?
H Hornet2008 Well Known Member Sep 11, 2022 #1 I have been told mogas, 98, 95 and 91 cannot be mixed with 100LL. Is this correct?
rv8ch Well Known Member Patron Sep 12, 2022 #2 Hornet2008 said: I have been told mogas, 98, 95 and 91 cannot be mixed with 100LL. Is this correct? Click to expand... They can be mixed, and many people do it daily. What is important is to understand what you get after mixing them. If your aircraft will run fine on both 100LL and on mogas 91, and you pour in some 100LL on top of 91, it will run fine. Same the other way. Is there a particular problem you are worried about?
Hornet2008 said: I have been told mogas, 98, 95 and 91 cannot be mixed with 100LL. Is this correct? Click to expand... They can be mixed, and many people do it daily. What is important is to understand what you get after mixing them. If your aircraft will run fine on both 100LL and on mogas 91, and you pour in some 100LL on top of 91, it will run fine. Same the other way. Is there a particular problem you are worried about?