Do yourself a favor and get some Brad Penn break in and be done with it. It works, has a crude oil base stock, and will not be any problem whatsoever being a semi synthetic. You dont NEED a dino oil to break an engine in...the internet can be a dangerous place.... 
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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