[Turtle]

I'm with you on the Meguiar's as it's some really good stuff. And the bug screen (even though I don't have one yet).

But recommending a particular oil in blanket fashion can be dangerous. The benefits of long-change interval synthetic oil should be obvious, but you have to take into account what the engine manufacturer says about oil, not to mention what kind of oil has been run in the engine previously. Each brand and viscosity of oil will wear an engine differently, and changing oil types will result in excessive engine wear. It's best to pick whatever oil you want to use from day one, and use that oil for the life of the vehicle. If you've been using a dino oil for a year or three and want to change to synthetic, that'a fine, but you should probably use the synthetic equivalent of whatever brand you've been using.

I use Mobile 1 0W-40 fully synthetic in my Sprinter, because it's recommended by the manufacturer, and it was the initial fill oil at the factory. As long as I own the van, it's highly unlikely that a different oil will ever be used in it.

Incidentally, a fuel system cleaner should be used every tank, not just after x number of miles. The key to not only keeping engine wear at a minimum, but keeping the "cleaning process" from causing abnormal wear, is to keep the fuel system clean as you go. If you run a gasser and use Top Tier gasolines, a fuel system cleaner is largely unnecessary, as that's what a Top Tier gasoline does in the first place.

I use Howes Meaner Power Cleaner in every tank for diesel. Most Pilot's have that currently on sale as $3 off the regular $14.99 price, and the Iowa 80 in Wolcott has it for a flat $10 a bottle (I bought several).