Again… the point?
it’s acid…. Used as a catalyst
anyone tells you Avgas and Mogas are chalk and cheese… ignore them
if your engine needs lead run 100LL avgas
if not…. 98 ULP won’t hurt…. Provided the compression and timing allows it
if an engine manufacturer says it can be used….. use it
full stop
now about those Gen4’s and feedback positive or negative
Whatever… seeing as AVgas and Mogas are virtually the same thing… just slightly different components to get the different octane numbers … both change depending on where they’re used … be it in a cold climate or warm… be it summer or winter…. Even altitude
So the argument between one or the other is just silly…. One is 100 octane and contains Lead the other is a lower octane and doesn’t…. Seeing as most aero engines are low compression…. The engine doesn’t care…. Just as long as it doesn’t need the lead for lubrication
The Avgas I helped make was full of Alkylate made from C3’s and C4’s after passing through Hydrofloric acid
ask you chemist mate what that would do to aero engines if it wasn’t neutralised correctly…. I actually think BP knows…. Rather large compo bill I think…. Though happy to stand corrected
Aaaaaand…. ULP98 does drop octane if left open as the lighter components such as C4’s flash off… it may be marginal but true non the less
good 98 can have a positive cleaning effect too… helping to remove some of those leaded deposits
Again… what do these conversations… as mind tingling as they are…. Have to do with a Jabiru Gen 4?
you can start a new thread if you have a new idea…. Or have I just embarrassed myself again 😳
Anyone updated to a Jabiru Gen 4?
Are there any actual experience with cooling issues, good or bad, now the barrels and heads have increased surface area?
Trying to decide between LCH with Rotec and a new Gen 4