Just Curious if the additives in Premium fuel are worth the higher price. I see Chevron has a techron concentrate additive in a bottle you can use to help clean out and reduce deposits. Would this work?
I think our octane levels are 87, 89, and 94 for the most part in Canada but hear mixed reports on how important premium fuel really is.
I have been trying the slightly less than premium 89 octane for a few months in the thirsty 4.0 and she seems a bit sluggish in the mid rpm.
Can anyone attempt to enlighten?