Shell Oil's parent company is Royal Dutch Shell.
STP - motor oil company - was created in 1953.
Penzoil makes Quacker State Motor oil
mobil makes the oil
Motor oil will float on water. That makes water denser.
Advance motor oil is made by Coastal
Can be any oil company. It changes from year to year, so it is very hard to say.
PEAK makes peak motor oil, they are known for their antifreeze products before they launched their motor oil line. It's apparently already sponsored the IndyCar when it was first launched in 2007, and is being called "premium motor oil".
Omni specialty packaging makes the orilly brand oil
Omni specialty packaging makes the orilly brand oil
Advance motor oil is made by Coastal
If it is the conventional oil it REALLY does NOT matter who makes it. Most conventional motor oils are the same. With conventional motor oil just use the recomended viscosity and change it often.