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pneon99 · 09-27-2004, 10:13 AM

i called a ford dealership regarding this as i have always filled up 89 thinking this was a good way to keep a car from knocking. she told me she has never heard of a problem with the spark plugs like this im sure at 93 it is an issue as was explained thouroughly by Mt. She doesnt recommend anything higher as a normal fillup than 89. once a month at 91 wont hurt though.

09-27-2004, 10:13 AM	#3 (permalink)
pneon99 02 TRU BLUE META GT VERT Join Date: Sep 2004 Location: Woodland Hills,CA Posts: 81	i called a ford dealership regarding this as i have always filled up 89 thinking this was a good way to keep a car from knocking. she told me she has never heard of a problem with the spark plugs like this im sure at 93 it is an issue as was explained thouroughly by Mt. She doesnt recommend anything higher as a normal fillup than 89. once a month at 91 wont hurt though.