It goes without saying that an engine must have a clean, rust-free reservoir from which to drink-and a lack of punctures helps, too. However, after a recent trip to a local sandblasting outfit, it became apparent to us that the original fuel tank found under our beloved Suburban was not going to make the cut. We had the rig's undercarriage sandblasted in preparation for a fresh coat of paint. The process revealed several holes in the factory steel fuel tank. We suspected these holes were caused by rust that attacked the tank's inner walls, as the vehicle had been in storage for more than five years before being resurrected. For some odd reason, the salty coastal air out here in California doesn't play well with unprotected metal surfaces-ponder that. Our suspicions were confirmed when we removed the unit from the vehicle to inspect the contents. The fuel we poured out was several years old and contaminated with a rich red substance-rust. So, we contacted MTS Company about a line of plastic replacement gas tanks they offer. MTS has specialized in such fuel tanks for over 20 years. With a simple phone call, MTS had us handled, and a new rust-proof 21-gallon replacement fuel tank was on its way to our door. Check out the highlights from our home-garage installation.