So Saturday I went to Cortese Ford in Henrietta to get one of my 2 free oil changes. Fast forward to today I noticed the car not making boost. I pull into Walmart and check the oil, none to be found on the dipstick. I purchased 5 qts Ford Synthetic blend 5w20 and added a total of 4 qts til it finally showed on the dipstick. Still no boost, I reset the ECU and now it seems to boost normal. What should I do? I am worried the engine was run severely low on oil, though no oil indication lamp lit at all. I knew to check the oil because in my Honda the VTEC would stop working if oil was low. I am very frustrated. Suggestions?