FuzzyOne Posted November 23, 2023 Share Posted November 23, 2023 Good Morning, Fusion Friends! I recently purchased a 2020 Fusion SE (21+K miles) with the 1.5L engine. It came to me wearing Yokohama IceGuard iG51V, 225/55-R18 tires, a good looking Winter Rated tire, and they are mounted on aftermarket RS wheels. According to the door jamb stickers, this Fusion was originally equipped with 17" tires/wheels. I went about looking for recommended proper inflation pressure and discovered that apparently these tires were originally intended for installation on light trucks/SUVs and are no longer available to purchase. My digital speedometer seems to read correctly, however, the analog dial speedometer looks to indicate approximately 14 mph lower than the digital reading. Looking at one of the online Tire Comparison-Tire Size Calculator's indicates this 18" tire compared to the OEM 17" tire (235/50-R17) has an increased diameter of ~1.5" (taller), slightly narrower (~0.4") and a decreased Revolutions Per Mile of 5.4%. I understand this Winter tire will likely produce more noise than the OEM all-season tires and that they are not intended to wear as well either. I also can see that these 18" tires fill up more of the wheelhouse opening - but I don't believe that causes any issues nor do I notice that they rub anywhere. So my question: Does anyone here feel these 18" tires should not be ran on this Fusion - would they be dangerous? Thanks in Advance for any advice or opinions, FuzzyOne 0 Quote Link to comment Share on other sites More sharing options...
FuzzyOne Posted December 2, 2023 Author Share Posted December 2, 2023 Does anyone have an opinion on continuing to run these tires on my Fusion? What tire pressure would be suggested? Is 39-psi be too much? Thanks! - FuzzyOne 🇺🇸 0 Quote Link to comment Share on other sites More sharing options...
WKelley Posted December 2, 2023 Share Posted December 2, 2023 Don't see why they would be unsafe. As long as they don't rub and you can handle the speedo error nothing bad would happen. They won't handle as well as factory sized tires, but they are winter tires anyways so stopping and traction are more important than high speed handling. I'd run them between 30-32. No reason for higher pressure on a non hybrid. 0 Quote Link to comment Share on other sites More sharing options...
FuzzyOne Posted December 3, 2023 Author Share Posted December 3, 2023 WKelly, Thanks for your response and opinions, my Friend. I also appreciate your suggestion on reducing the tire pressures. Do you think there may be a way to correct the analog speedo reading to match the digital readout? FuzzyOne 0 Quote Link to comment Share on other sites More sharing options...
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