51 MERC-CT Well-known member Dec 22, 2013 #21 mrtexas said: Dream on about getting a mileage improvement from switching to mid grade. The only improvement made was improved profit for the oil company. Click to expand... ford38v8 said: Someone had to say it first. I'll second it. Click to expand... Wonder what improvement would have been made if it were switched to high test??
mrtexas said: Dream on about getting a mileage improvement from switching to mid grade. The only improvement made was improved profit for the oil company. Click to expand... ford38v8 said: Someone had to say it first. I'll second it. Click to expand... Wonder what improvement would have been made if it were switched to high test??
