The use of any other engine oil aside Motorcraft recommended synthetic will damage the vvt assembly of the engine. This will Result to : 1 cracking notice at cold start 2 alteration in timing 3 tapping sound at idle running, 4 erratic running. 5 engine malfunction light displays. 6 reduction in power output. 7 premature engine water.

So can you give all a source on the information or was that from a personal experience

It was my series of experience on Ford, Lincoln And Mercury Cars acquired from Brisco Ford motors, Coscharis motors and incorporation of Femtopford/Motorcraft manufacturer

Ok

Yes, that's Ford cars for u. Very strong, high durability and comfortable ride while u obey the manufacturer specification. The dream of every car owners. Thanks Deco tech.

When you have this cracking notice at cold start, what's the remedy? I am about to purchase a 2015 Ford Explorer with the single problem of cracking notice at Cold start. Do I really have to replace the engine or that sound can be remedied? That's the only problem with the vehicle and the seller is honest enough to tell me this issue. Please reply fast because I need to make a decision.

Thanks