Originally Posted by DAC17
So, rather than speculation, the only way to solve this is through dyno testing in both 87 and 93 octane modes, right? I haven't seen that one yet. If I've missed something, please let me know.
Once again for those that missed it, or just didn't watch it. They don't use a Focus, but I believe the Focus has the similar sophisticated engine management, TI-VCT, that the Subaru and the VW have.