Scottd316 Report post Posted August 20, 2021 Hello all, I'm new to the forum. Just a quick question. I used to take my 2009 Ford Edge Sel to the dealership to have my oil changed. They always used Motorcraft Synthetic blend 5w-20. I stopped taking it there due to the price. I took it to another place today and all they had left was Castrol full synthetic 5w-20. Is this OK? I know Castrol is good, but will using full synthetic vs Synthetic blend make a difference? Good or bad? Thank you for your time! Share this post Link to post Share on other sites
1004ron Report post Posted August 20, 2021 Yes, full synthetic is superior to the synthetic blend and its the same viscosity. I'm sure that you'll find that listed in your owners manual. Share this post Link to post Share on other sites
Scottd316 Report post Posted August 20, 2021 Thank you. I appreciate it Share this post Link to post Share on other sites
WWWPerfA_ZN0W Report post Posted August 22, 2021 any full synthetic is fine, but these engines seem to prefer "thicker" oils such as from Shell, Castrol, Mobil1 etc. you can see SN rated producer characteristics on this spreadsheet: https://docs.google.com/spreadsheets/d/1gEMTa3YOBIYBTYiaEhQLfooPohN_l645z1DaWRuFzC0/ and it carries through even with the SP and SN+ rated oils. you can even move up to 5W30 with no worries. 2 Share this post Link to post Share on other sites
Victor Report post Posted November 17, 2022 I use Mobile 1 10w-30 on mine. Share this post Link to post Share on other sites
