Hi Guys I'm new and have a question for you oil experts! I have a 2003 Silverado and I broke in the 5.3 engine with oil changes at 500 miles, 1,500 and I started using Mobil 1 at 2,700 miles. My truck now has 3,700 miles on it and it hasen't burned any oil yet. Do you think switching form conventional oil to Mobil 1 synthetic was a good idea or should I go back to regular Valvoline? Is it even safe to switch back to regular oil now that I have 1,000 miles with Mobil 1 synthetic or is that just a myth? Will this Mobil 1 make a huge difference with wear and overall protection in the long run as I want to keep this truck a long long time and that is why I started to use the Mobil 1. Thank you for any help!!!!