want to get at least 200 K from my engine

[jrustles]

To get 200K out of your vehicles with oil, you'll want to pay attn to the following:

-browse the engine oil shelves at your local retail outlet
-scan across all the array of bottles on the shelf, slowly
-focus in on the most visually appealing bottle ie, colour, shape, graphics and advert claims
-focus further on the correct grade and spec

voila! you have your new oil that you are now free to have a monogamous relationship with

Because, the only realistic 'good thing' about feeling personal loyalty towards a product of a large oil company, will at least be an increased likelihood of staying up on the oil drain interval

 

[fdcg27]

You've directed the OP to look at the wrong part of the shelf.
Scan the prices, since any name brand oil will meet current specs.
Quaker State and Mobil Super are typically the value leaders among name brands.
You might also score a Quaker State dino that appears to have a Grp III GTL basestock, or at least that's what the oil looked like the last time PQIA tested it.