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I read this story and I’m glad to hear you’ve had such a positive experience—reading that honestly makes me wish mine had gone the same way. Unfortunately, my experience has been quite different. My Roush F-150 has been in and out of an authorized Roush service center approximately 10 +/-...

When you pour fresh Castrol 5250 into the truck, it isn't sticky. The gooey stuff that passes through the intake and gums up the Map sensor has ummmm different characteristics. I suspect I got a faulty PCV system or excessive blow by the compression rings. 11 flat is AWSOME! Sounds like you...

I'm not really having any oil consumption. My problems didn't start until about 55k miles. So you are right about to that point. Is your Roush F150 supercharged? I think the oil is passing through the intake and clogging the MAP sensor during heavy boost. Trust me, my Roush tech pulls the...

I think the oil gets through the intake during times of heavy boost. Maybe it is a bad PCV system? We are only finding maybe a tablespoon in the catch can at regular oil change intervals.

I am using 5W50 full synthetic. We aren't observing oil consumption between oil changes. When we change the oil we are seeing maybe a tablespoon in the catch can. The PCV valve has NOT been replaced? I will also look into a vacuum gauge. Those are good suggestions. Thank you.

I appreciate the suggestion Slime-Bullet. My F150 is powered by the the same Roush / TVS Supercharged 5.0 installed in a bunch of mustangs. It's a engine thing, not really particular to a vehicle type and I figure that there are a lot more of you Mustang owners with this type of setup than...

Hey everyone, hoping to get some insight from folks who know these setups better than I do. I’ve got a 2018 Roush supercharged F150 that I really like, but I’ve been chasing a recurring issue for the past three years that hasn’t been resolved. About every 5,000–10,000 miles, the truck starts...