Regardless of your OCI, vehicles need to be inspected periodically for any potential safety or repair issues. Toyota went to the 1/10K OCI in 2010 but still programmed the maintenance light to illuminate every 5K for a tire rotation and inspection.I don't like crawling under a car more than I need to. I also don't care to waste oil as a resource. Besides of all of that though, I'm a nerd for data.
I am a big proponent of this schedule since it allows the vehicle to receive a proper inspection (under-hood and under-vehicle) on a frequent basis. This is especially important on older vehicles that are naturally more prone to developing mechanical and safety issues.
That is a unique personal issue. If this is preventing you from maintaining your vehicles properly (because a good vehicle PM schedule involves more than just oil changes), then maybe you need to consider other options. If you are only inspecting your vehicles every 20K, your approach is not in the best interest of vehicle reliability or safety.It's not the ramps and creeper. It's the bad back that doesn't like transitioning to and from the ground.
This is a forum. Are you not open to debate or being challenged?You're not getting it. Let's try this. You change your oil at 10k miles. I'll change my oil at 20k miles. You do what works for you, and I'll do what works for me. You're not going to change my mind, and I'm not going to change yours.
