My vehicle-maintenance purchases included Pennzoil Platinum 5W-30 engine oil.
The featured Amazon option is Valvoline Advanced 5W-30 Motor Oil Two-Pack.
Where it fits my build
While fitting the heater below the passenger seat, I worked underneath the van on the intake, exhaust, fuel filter and pump mounts. The black substance visible on the undercarriage was Fluid Film Black, which I had applied across the underbody while leaving the exhaust parts uncoated.
Much of that session was spent lying on my back. I recorded how cramped the space was and how tiring it became to hold my head up and work with both hands around the mounting points.
The underside of my van during the heater pipe and mounting work.A later view of the fuel-line and wiring route beneath the van.
My build notes
The diary separates the coating already present beneath the van from the heater work happening that day. The photos are useful for seeing the available working space and the location of the lines and attachments.
The available space under the van affected the pace of each mounting task.
Alternative products
Two alternatives to compare
Valvoline, Mobil 1 and Castrol EDGE are shown in the same 5W-30 viscosity grade. The featured Valvoline offer is a two-pack of five-quart containers, while the alternatives use individual five-quart containers.
Mobil 1 5W-30 Synthetic Motor Oil
This five-quart container holds 5W-30 synthetic motor oil. A molded handle and screw cap provide a pourable vehicle-maintenance supply.
