Originally Posted by
Fartblood
I did actually say that engines that have to retard their timing to run on 95 will run at their intended full power on 97, so I'm glad you agree. As aforementioned, that isn't an improvement in power but is simply allowing those units to operate optimally
Cetane is a critical element to consider with compression ignition, which is why I wrote "...so questions over octane don't apply.". Once again, I'm glad you agree.
Please feel free to direct me to some research which is both properly scientific and independent - you indicate there are many, yet have failed ro link to a single one. There's plenty of magazine guff, and consumer groups, TV programmes, YouTube carriers et al, but I've yet to to see any credible, properly objective scientific testing that proves any benefit. There wasn't any when I was studying the subject postgrad, and I'm not aware of any since.
What's not scientific about the testing on 5th gear? Just because it wasn't performed in a lab with people with white coats doesn't mean it isn't scientific, and your idea that people in a lab are "properly objective" is silly too as there is loads of testing data that is worked in such a way that they get the results they are often funded too.
Quite clearly a benefit, also momentum and nitro unleaded are actually 99ron and not 97ron like you assume.