Engine oil Mobil or PENNZOIL

Mobil 1 extended oil. Full synthetic 5W30 changed every 12,000km. Mine burns about 1 litre (pint) per every 1,500-2,000km. So I top up a few times between full on oil changes

I use Mobil 1 full synthetic because I also use it for my car, and if you send you oil off to a lab after you change it, even at 3000 miles the oil was still in great shape.

Ran Mobil 1 Advanced Fuel Economy for a while and it was fine, but lately I've switched over to the Toyota branded. It's more expensive, but I only change my oil once a year because I don't drive it much, and I like the higher molybdenum content in the Toyota stuff.

I use Pennzoil in my cars because it won project farm's oil showdown.

The OE VW oil is Mobil 1 0W-20 ESP X2 with a zirconium marker and blue dye added for VW 508/509 requirements. The ESP X2 0W-20 is the only M1 product that meets the higher HTHS spec needed for VW 508/509. Its also API SP and has balanced chemistry for LSPI issues in other makes.

Mobil 1 5w-50 for the last few years.

I always used Mobil1 High Milage oil in my old truck before I sold it.

Pennzoil Platinum Euro is one of the best oils available as far as NOACK is concerned. It meets most if not all European car manufacturers specs and is the factory fill in Fiat/Alfa engines.

I run Mobil 1 in my bikes.

Tie between Royal Purple or Pennzoil, choice usually based on availability or sales. I might slightly favor Pennzoil due to its connection with Shell as I exclusively use Shell 93 fuel for the additives.