well said . thanksNecessary? Some people would argue that. Recommended? Yes, by both the manufacturer and many, MANY Smart owners (myself included). Why put lower octane fuel into the car and potentially end up lowering performance and mucking up the engine faster?
That aside... It's what... maybe $3 more to fill with 91/93 octane than it is to fill with 87? And generally half that if you go with the mid 89 octane? Why bother for such minuscule savings? Now if you were putting 91/93 octane into something like a Jeep Grand Cherokee with a 30-some gallon tank... then yea, maybe i'd say go down a notch or so. But for 7-8 gallons... don't see a point in going for anything less.
Remember it is always your choice.I agree. If smart thought it was safe to use lower octane fuel, then I would think they would say so. This would be a positive in terms of increasing sales as people could save money using cheaper gas. High(er) compression engine not specifically designed for lower octane, why risk it?
Motorcycle similar engine? we have the same Mitsubishi motor in the forklifts at work, except it is a 4 cylinder..and runs on LPGIMHO, we are asking a lot from the little Smart 1K motorcycle similar engine. It performs exceptionally well, considering the mass it must push around. We Smart owners are already reaping exceptional benefits from our cars. A little extra expense for premium top tier fuel is nothing compared to the benefits.
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I'm on the same page with him.I found that buying the lower octane fuel, and especially with ethanol would drop the MPG to the point where it would cost more to run the lower grade fuel. Mostly purchase at places that do a lot of sales so I don't end up with bad gas.
If you do use a lower grade of fuel, your smart will adjust, but why make it work harder.
Just drive it. You'll likely have no troubles.For the first time in my 2010 I put in 7 gallons of regular vs high test. Senior moment. Had thoughts of siphoning and that is not a good idea. Someone recommended holding the car upside down and pouring it out that way. The 4 different diameter sizes and stoutness of the hoses would not reach the fuel. Utube showed me the removal headache. I'll just burn it 1/2 way & fill it up with the right stuff. Fingers crossed.