Break in engine oil - The 1947 - Present Chevrolet & GMC Truck Message Board Network

engineer_gregh · 08-24-2014, 10:30 AM

I'm currently using Zddp Maxx Zddp Oil Additive with Valvoline 10w-40 in my 402 after the rebuild and break in period. I know a lot of folks are using Shell Rotella but I'm not comfortable with 15W-40 for startups on cold mornings. Could you not use the break in oil be at each oil change versus buying the additives? The cost is about the same. Can some of you more experienced engine builders chime in here with your opinions?

08-24-2014, 10:30 AM	#1
engineer_gregh Registered User Join Date: Feb 2012 Location: Smyrna TN Posts: 1,153	Break in engine oil I'm currently using Zddp Maxx Zddp Oil Additive with Valvoline 10w-40 in my 402 after the rebuild and break in period. I know a lot of folks are using Shell Rotella but I'm not comfortable with 15W-40 for startups on cold mornings. Could you not use the break in oil be at each oil change versus buying the additives? The cost is about the same. Can some of you more experienced engine builders chime in here with your opinions?



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