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Especially in an Ecoboost. My 2014 3.5L rarely ever saw over 3500 RPM towing my 5500 lb travel trailer in the Rockies. Unloaded, the...
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This. The Motor Oil Geek video shows an ecoboost that was run to 500k miles on conventional oil and then had Valvoline Restore and...
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This video shows the results of a 500k mile engine that only has Valvoline R+P run in it for 150 hours. By my math, 150 hours works out...
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