tsarty17 Posted July 2, 2015 at 08:46 AM Report Share Posted July 2, 2015 at 08:46 AM I have always used regular for my fusion. However I heard the volts use premium and was wondering if anyone got better mileage using premium? Quote Link to comment Share on other sites More sharing options...
murphy Posted July 2, 2015 at 09:16 AM Report Share Posted July 2, 2015 at 09:16 AM Using premium in an engine designed for regular does nothing but waste money. shaggy314, Hybridbear, Doug0716 and 1 other 4 Quote Link to comment Share on other sites More sharing options...
stevedebi Posted July 2, 2015 at 03:36 PM Report Share Posted July 2, 2015 at 03:36 PM I have always used regular for my fusion. However I heard the volts use premium and was wondering if anyone got better mileage using premium?Take a look at the owner manual and do what it recommends. Some engines are made to provide more HP with premium (my Honda Odyssey was that way), but I don't think Ford ever does this. In the case of my Honda, it wasn't enough of an increase to justify the price anyway. Quote Link to comment Share on other sites More sharing options...
tsarty17 Posted July 2, 2015 at 04:04 PM Author Report Share Posted July 2, 2015 at 04:04 PM Back in the day my old f150 ran way better on premium but I was an old truck. I know euro cars require it too. I was just curious cause of the volt. Quote Link to comment Share on other sites More sharing options...
Russael Posted July 2, 2015 at 04:06 PM Report Share Posted July 2, 2015 at 04:06 PM Take a look at the owner manual and do what it recommends. Some engines are made to provide more HP with premium (my Honda Odyssey was that way), but I don't think Ford ever does this. In the case of my Honda, it wasn't enough of an increase to justify the price anyway. The Ford Mustang and the 2.0 Ecoboost (Fusion and others) both will give added power on premium The 2.0 Ecoboost runs at 232HP on regular unleaded. Quote Link to comment Share on other sites More sharing options...
Doug0716 Posted July 2, 2015 at 10:41 PM Report Share Posted July 2, 2015 at 10:41 PM The Ford Mustang and the 2.0 Ecoboost (Fusion and others) both will give added power on premium The 2.0 Ecoboost runs at 232HP on regular unleaded.Those are a muscle car and a turbo charged engine, this has no bearing on our vehicles. Quote Link to comment Share on other sites More sharing options...
Hybridbear Posted July 3, 2015 at 02:03 AM Report Share Posted July 3, 2015 at 02:03 AM The car will change ICE behavior based on the octane of the fuel, see this thread from this post on for more info. We earn fuel discounts from a local grocery store. Since we use so little gas we usually share with my parents to get close to the 20 gallon maximum with the discount. When we fill up the Energi & their Murano we buy 89 octane because the Murano is designed for 89 and will ping on 87. I don't notice any fuel economy change with 89 octane, but there is a difference in ICE behavior as documented in the posts linked above. Quote Link to comment Share on other sites More sharing options...
Russael Posted July 3, 2015 at 03:56 AM Report Share Posted July 3, 2015 at 03:56 AM Those are a muscle car and a turbo charged engine, this has no bearing on our vehicles. I know that. I was commenting in regards to "Some engines are made to provide more HP with premium (my Honda Odyssey was that way), but I don't think Ford ever does this." Quote Link to comment Share on other sites More sharing options...
Blastphemy Posted July 3, 2015 at 04:44 PM Report Share Posted July 3, 2015 at 04:44 PM One reason the Volt uses premium gas is because many Volt owners rarely use gas, and premium doesn't go stale as quickly (according to GM). It also uses premium because the engine is designed to use premium. Circular logic, yes, but that's the reason. Using premium in a car designed for regular (like the Ford Fusion Energi) doesn't accomplish anything aside from enabling one to waste his/her money. http://gm-volt.com/2010/07/30/why-the-volt-requires-premium-gasoline/ http://www.cartalk.com/content/premium-vs-regular-0 Quote Link to comment Share on other sites More sharing options...
Blastphemy Posted July 3, 2015 at 04:45 PM Report Share Posted July 3, 2015 at 04:45 PM BTW, the 2016 Gen II Volt will use regular gas, not premium. I have no idea why, though. Quote Link to comment Share on other sites More sharing options...
Hybridbear Posted July 4, 2015 at 09:45 PM Report Share Posted July 4, 2015 at 09:45 PM BTW, the 2016 Gen II Volt will use regular gas, not premium. I have no idea why, though.It seems that many owners didn't like having to buy premium so GM designed the new Volt engine to work fine on regular. shaggy314 1 Quote Link to comment Share on other sites More sharing options...
shaggy314 Posted July 5, 2015 at 05:25 AM Report Share Posted July 5, 2015 at 05:25 AM BTW, the 2016 Gen II Volt will use regular gas, not premium. I have no idea why, though. Easy, they made the engine to use regular. It was a design feedback from their customers... I'm sure there is an engineer that can explain how, but it was mentioned in one of the 2016 Volt interview videos. Quote Link to comment Share on other sites More sharing options...
stevedebi Posted July 6, 2015 at 05:19 PM Report Share Posted July 6, 2015 at 05:19 PM I know that. I was commenting in regards to "Some engines are made to provide more HP with premium (my Honda Odyssey was that way), but I don't think Ford ever does this."I knew what you meant... Quote Link to comment Share on other sites More sharing options...
lonzo71 Posted July 7, 2015 at 04:22 PM Report Share Posted July 7, 2015 at 04:22 PM Thanks Bear for the links, I'm curious if using higher will do anything but at what cost... Quote Link to comment Share on other sites More sharing options...
expresspotato Posted July 10, 2015 at 01:42 AM Report Share Posted July 10, 2015 at 01:42 AM I don't use premium as there's no point... When you need torque it comes from the electric motor anyways. I do notice the ICE is a bit smoother on it through. In Canada is a real ripoff as there's only 1 hose for all 3 grades of fuel, so your first 2-3L is what the last person bought. Quote Link to comment Share on other sites More sharing options...
Euclid's Brother Posted August 19, 2015 at 06:55 PM Report Share Posted August 19, 2015 at 06:55 PM When I drove to Colorado and back last week, Regular there was 85 or 86 octane. My FFE did fine on 85 octane. Engines with higher compression ratios need higher octane. The knocking in high performance engines using too low of an octane rating is because the fuel will spontaneously combust under the higher air pressure (ie. before the spark). Higher octane can be compressed more before they auto-ignite. Quote Link to comment Share on other sites More sharing options...
stevedebi Posted August 20, 2015 at 07:51 PM Report Share Posted August 20, 2015 at 07:51 PM When I drove to Colorado and back last week, Regular there was 85 or 86 octane. My FFE did fine on 85 octane. Engines with higher compression ratios need higher octane. The knocking in high performance engines using too low of an octane rating is because the fuel will spontaneously combust under the higher air pressure (ie. before the spark). Higher octane can be compressed more before they auto-ignite.Does your owner manual state 87 or higher? I always fill up with the mid grade in New Mexico, which is 89, if I recall. Quote Link to comment Share on other sites More sharing options...
Hybridbear Posted August 20, 2015 at 09:00 PM Report Share Posted August 20, 2015 at 09:00 PM Does your owner manual state 87 or higher? I always fill up with the mid grade in New Mexico, which is 89, if I recall.Check out the links in post 7 of this thread (if you haven't already) for a description of how the ICE behavior changes when using a lower octane fuel at high altitudes. Quote Link to comment Share on other sites More sharing options...
troylikesbikes Posted August 21, 2015 at 08:48 PM Report Share Posted August 21, 2015 at 08:48 PM Some engines are made to provide more HP with premium (my Honda Odyssey was that way), but I don't think Ford ever does this. Mustang GTs. Quote Link to comment Share on other sites More sharing options...
stevedebi Posted August 24, 2015 at 05:22 PM Report Share Posted August 24, 2015 at 05:22 PM Check out the links in post 7 of this thread (if you haven't already) for a description of how the ICE behavior changes when using a lower octane fuel at high altitudes.Those posts indicate exactly what I said - use 88 octane in high altitudes. Thanks for the link though. Quote Link to comment Share on other sites More sharing options...
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