I just barely broke in the engine on factory conventional oil to seat all the seals and whatnots. I'm now changing the oil over to my favorite Mobil 1 synthetic for the rest of its life. When I bought my 1999 GMC Sierra SLE with the Vortec engine, I did the same thing and NEVER, EVER had an issue with the engine and, believe me, that engine worked its butt off.
After converting all of my vehicles to Mobil 1 synthetic oils and never having an issue directly related to oil failure, I sleep easy knowing that I have the best protection and the best product in my engines.
The photographs and testimonials on this web site were submitted by the respective winners of the Photo Essay Contest (Performance Gallery) and are depicted solely for the purpose of displaying recent winning entries. The results described in the performance gallery are solely expressions of the winners’ personal experiences with their particular vehicle. In light of that, your experience with using Mobil 1 ™ is likely to differ based on a number of factors, including among other things, your engine and vehicle type, its maintenance, operating conditions and the environment. The photographs and testimonials are not endorsed in any way by ExxonMobil Fuels, Lubricants & Specialties Marketing Company, a division of Exxon Mobil Corporation. The use of any third-party automobiles, other products or trademarks in any of the winning entries displayed on this web site does not imply endorsement of either Mobil 1 or the entries themselves by the manufacturers of such automobiles or other products, or by the owners of such trademarks.