Originally Posted By: engineer20
What I don't get is, if Mobil 5000 is so good, then why is it amongst one of the cheapest conventionals, often cheaper than walmart supertech or maijer brand oil or autozone oil, if it's so good, whereas castrol is priced the same as pennzoil yellow bottle or other "premium conventionals"
why is castrol priced like a "premium" oil yet is worse whereas mobil is "bettet" yet priced like supertech, like a bargain oil?
Purchase price at a retail level doesn't reflect on the quality of goods as much as it has to do with popularity,and charging what the retailer feels the market will bear.
For example yes pyb is a great oil however so is qsud,and Mobil 5000 and I would bet my left one that using any of the mentioned brands exclusively and changing the oil at 5000 mile intervals all 3 would perform identically in 3 identically run engines.
Yet the pyb costs more?
Why you may ask?
It's because public perception is that pyb is a premium conventional and qsud is in some way inferior in the public eye and therefore cannot command the same price.
Honestly. At 5000 mile intervals use the cheapest dexos 5w-30 you can find. They will all perform the same.