This was also posted on LS1 Tech, so sorry for members who read both. I have 3 vehicles with LS based engines: 2001 Silverado - LM7 5.3L - 170K 2008 Z06 - LS7 7.0L - 17K 2012 CTS-V wagon - LSA 6.2L - 32K Since I only drive one vehicle at a time, they each have a tendency to sit for varrying amounts of time. The Z06 is a play vehicle and only comes out on the weekends every week to 6 weeks. The truck was my DD for 9 years, it was stolen back in February and recovered. now I drive it every day for a week or two and then swtich off with the CTS-V The CTS-V was supposed to be the replacement for the truck, but I love my truck too much. So I alternate every week or two driving the two vehicles. All vehicles are filled with M1 5W-30 Long Term Storage: I'm getting concern about the truck, I'm getting some noise out of the engine and it seems to be getting worse. I was told a main bearing was probably going bad back in December, but I have between 40-60 PSI of oil pressure. In any manner I am getting a knocking noise. Not mention I am at times getting a "gear whine" noise, that i don't remember before the truck was stolen. In any manner I love the truck but I am thinking about putting it into long term storage until my son gets older and we can work on it together. I estimate it will take $7-8K of investment in a new engine,trans and transfer case rebuild to get it where I want. What would I need to do to prep it for 10+ years of storage. I assume when I get it out I would need to hit it with a pressure oiler. Short term storage: What is the longest an LS engine can sit (a week, 2, or etc) before I need to worry about causing allot of damage consistently on start up? Is there anything I can do to minimize damage damage on a week to 6 week storage time frame? I've seen pressure oilers for these cars and using it every time I want to start up the Z seems like a pain in the [censored].