New practice

[labman]

I am thinking of abandoning my long standing practice of Pennzoil conventional every 3 months in my truck and car whether they need it or not. I am looking at Kendall GT synthetic and a Blackstone every quarter until it shows I need to change.

I think this will provide about the same or better protection for slightly more money. My Wal*Mart is selling 5 qt Pennzoil conventional for $11.50. I think Autozone's regular price for Kendall is $3/qt or $15.

I think this will mean a major reduction in money going out of the country. I assume it takes no more crude to make synthetic than dino, and Blackstone is mostly American labor. Conoco/Phillips is American owned, I even have a dab of their stock. I don't like many of the countries we import oil from.

 

[webfors]

Sounds like a reasonable plan, and you get the benefit of knowing if anything terrible is happening inside your engine before it's too late.

You could also look at the longer drain oils to stretch things out even further and sample less often, like every 6 months.

 

[addyguy]

You REALLY want to invest in an American oil company? Buy 'Bradd Penn' oil.

C-P is well known to use Korean basestocks in their products....especially the group III base used in their synthetics. It's all South Korean Group III.

How is this stopping money going out of your country? I don't get your logic.......

 

[GMorg]

Labman wrote:
"I assume it takes no more crude to make synthetic than dino"

Given the amount of heat and hydrogen required for severe hydrocracking, a group III will take more of some resources. Depending on how the refinery sources those materials, it may take a lot more crude to make a Group III than a Group II/II+. If the hydrogen comes from natural gas and the heat comes from coal you may be right. If either is coming from crude or crude fractions, then your assumption is likely incorrect.

 

[mechtech2]

$15 is a pretty good price for 5qts of full synthetic engine oil.
I get my analysis done at 4K, and see how it looks.

Take into account winter/summer conditions when reviewing your results.