my experience that 87 in my bsbb 1.5 rattles - like the engine is coming apart
91 eliminates that condition and i can stop worrying - whew !
the cost is minor to me
i have been running 87 in my 1.5 liter bb from what ever gas station is close .
all the same rattle / noise
i just filled up with 91 octane and drove a bit.
smoother more power rattle gone - only the engine sounds i would expect to hear
complaint fixed - thanks so much to everyone that has...
howdy
i have a 2024 bronco sport big bend , with the 1.5 l engine.
on acceleration it the engine sounds like it coming apart.
loud rattling sound.
searching the web - its likely the injectors making this noise.
with the window open - not so bad
windows closed -that's when its the loudest.
gas...