garrett62 Posted March 9, 2015 Report Share Posted March 9, 2015 Does the 2.0 Ecoboost engine option require premium fuel? Thanks Quote Link to comment Share on other sites More sharing options...
alzakx Posted March 9, 2015 Report Share Posted March 9, 2015 Last year's model 3.5L engine did well with an 88 octane fuel, which will mostly fall in the regular fuel category. I'd say the same goes for this year's Edge. Quote Link to comment Share on other sites More sharing options...
CinnamonEdge Posted March 10, 2015 Report Share Posted March 10, 2015 (edited) I think all the Ecoboost engines have rated HP tested with premium fuel, but will run fine with 87 octane. So if you run higher octane you will get more power/better performance. Please correct me if Im wrong. Edited March 10, 2015 by CinnamonEdge Quote Link to comment Share on other sites More sharing options...
akirby Posted March 10, 2015 Report Share Posted March 10, 2015 No - 87 is fine. Quote Link to comment Share on other sites More sharing options...
garrett62 Posted March 10, 2015 Author Report Share Posted March 10, 2015 Would the mileage quoted on the window sticker be based on 87 octane?? Thanks Quote Link to comment Share on other sites More sharing options...
cab2g Posted March 10, 2015 Report Share Posted March 10, 2015 Would the mileage quoted on the window sticker be based on 87 octane?? Thanks 93 octane Quote Link to comment Share on other sites More sharing options...
garrett62 Posted March 10, 2015 Author Report Share Posted March 10, 2015 cab2g....where would you be getting this information from? Thanks Quote Link to comment Share on other sites More sharing options...
akirby Posted March 10, 2015 Report Share Posted March 10, 2015 No - the mpg ratings are on regular according to fueleconomy.gov. The HP rating is on premium. Quote Link to comment Share on other sites More sharing options...
cab2g Posted March 10, 2015 Report Share Posted March 10, 2015 cab2g....where would you be getting this information from? Thanks I guess I misread this:https://media.ford.com/content/fordmedia/fna/us/en/news/2015/02/06/performance-and-power--2015-ford-edge-sport-certified-as-highest.htmlThe standard twin-scroll 2.0-liter EcoBoost four-cylinder is rated at 245 horsepower at 5,500 rpm and 275 lb.-ft. of torque at 3,000 rpm (on 93-octane fuel), and returns EPA-estimated fuel economy ratings of 20 mpg city, 30 mpg highway and 24 mpg combined with front-wheel drive and 20 mpg city, 28 mpg highway and 23 mpg combined with all-wheel drive.It's confusing that they mention 93 octane in the sentence and then neglect to mention that another spec in the same sentence was determined using 87 octane. Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted March 10, 2015 Report Share Posted March 10, 2015 (edited) Not that this helps, but tech specs from Ford 2015_Edge_Tech Specs.pdf Edited March 10, 2015 by WWWPerfA_ZN0W Quote Link to comment Share on other sites More sharing options...
akirby Posted March 10, 2015 Report Share Posted March 10, 2015 On fueleconomy.gov it clearly states regular fuel. That's the authoritative source. Quote Link to comment Share on other sites More sharing options...
cab2g Posted March 12, 2015 Report Share Posted March 12, 2015 As an odd sidenote, no premium fuel is required or even recommended, yet the engine’s power and torque ratings, of 245 horsepower, and 275 pound-feet, respectively, are achieved on top-tier 93-octane fuel. Torque remains the same on the 87-octane that’s common at U.S. pumps, but horsepower is approximately ten percent lower—think around 220 hp. From http://www.thecarconnection.com/news/1097209_2015-ford-edge-first-drive/page-2 So there you have it. You'll get 220HP and 275 lb/ft torque if you use 87 octane. Quote Link to comment Share on other sites More sharing options...
cv27 Posted April 1, 2015 Report Share Posted April 1, 2015 In the 2015 Edge brochure, under "Estimated Fuel Consumption Ratings" on page 8, although all the figures are still xx.x in my edition (Canadian), there are 2 sections for the 2.0L EcoBoost 4-cylinder: with and without start-stop. Has anyone seen updated figures that distinguish between the two? Quote Link to comment Share on other sites More sharing options...
RJG Posted April 11, 2015 Report Share Posted April 11, 2015 (edited) That's because 87 octane fuel has slightly higher energy content than higher octane premium fuels. You will always get better fuel economy on 87 (or 85 depending on altitude), as long as the engine tuning and design accounts for it. Modern vehicle knock sensors signal the CPU to pull timing so as not to preignite. Since 87 is more volatile than premium fuels, it tends to pre ignite, so premium has additives that reduce it's volativity, allowing more timing, so you can get more HP from premium. You gain more HP from more timing than you give up with lower energy content premium fuel. I understand this is about opposite from what most on here have been told their whole lives. We have always been told Premium is better....marketing. Edited April 11, 2015 by RJG Quote Link to comment Share on other sites More sharing options...
akirby Posted April 12, 2015 Report Share Posted April 12, 2015 You're right about the timing. But both have virtually the same energy content - the only measurable difference is the volatility. Quote Link to comment Share on other sites More sharing options...
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