Re: Penzoil synthetic

[Pete]

No it is not a synthetic blend.

From Wikipedia (not that they are the last word 🙄 but convenient at time)

https://en.wikipedia.org/wiki/Synthetic_oil

"Semi-synthetic oils (also called "synthetic blends") are a mixture of mineral oil and synthetic oil, with no more than 30% synthetic oil, which are engineered to have many of the benefits of full synthetic oil without the cost. Lubricants that have synthetic base stocks even lower than 30% but with high-performance additives consisting of esters can also be considered synthetic lubricants. In general, the ratio of the synthetic base stock is used to define commodity codes among the customs declarations of tax purposes."

Boy there is a lot of behind the scene juggling, not 😮

Based on API standards for highest refining of Group III base stock that can be called a full synthetic for marketing and that is what the Mercury PWC oil is relying on. That does not make it a real Group IV base stock synthetic oil but they are allowed to call it full synthetic.

It is not easy finding out what is in the brew of these oils. The MSDS reveal some of it but in a lot of cases they state proprietary. As you can see in the ingredients I posted for Mercury PWC oil there is a lot of +/- stated to keep the real brew secret.

Not an Amsoil user but they claim Group IV PAO base stock in their oil and that supposedly makes it superior ❓ Also no MSDS on their products that I can find, disappointing , top Secret again ❗ As for car and outboard oils I like the stuff made by the oil makers and marketed under their name. Mercury, Yamaha, OMC, etc have the oil companies make their oil based on what they want in it from their testing, etc. Not saying that’s bad they are good oils I just prefer the ones directly from the refiners.

Like I said in my 1st post it is hard to know what you are getting in the can 🙁 , maybe they even put GMO’s in there ❓ 😆