I once had a half glass of tap water that I topped off with filtered bottled water before downing the whole thing. I wonder how much it shortened my lifespan.
I remember about 10-12 years ago when I told a guy I was using full synthetic of Brand X after switching from conventional oil of Brand Y. He recoiled in horror. Not only did I commit the cardinal sin of switching brands, but I also committed the unpardonable sin of switching from conventional to synthetic, which was sure to prove irreparably disastrous for my '02 Tacoma. I still drive the pickup, 110K miles later, and it's running like a top.
I remember about 10-12 years ago when I told a guy I was using full synthetic of Brand X after switching from conventional oil of Brand Y. He recoiled in horror. Not only did I commit the cardinal sin of switching brands, but I also committed the unpardonable sin of switching from conventional to synthetic, which was sure to prove irreparably disastrous for my '02 Tacoma. I still drive the pickup, 110K miles later, and it's running like a top.