Schaeffers is also really good stuff, has MoS2 in it, which when I added some from Liqui Moly into my Buick, quieted down my lifters and rockers a good bit. Used to be rattley, now it just spins like a dream! My base oil is the Costco chevron supreme 10w-30. I just pulled valve covers last weekend to reseal them and they were CLEAN.
I am planning on using Schaeffers in my car starting next oil change. I run schaeffers in my Cummins, thats where my experience comes from. Havent had a chance to do a UOA, but many people have and the numbers usually come in VERY low.
94 RMSB 170K Sat 5 years, ran for 1 of those then remained untouched for 4. Sat because it was slapped by a deer and the owners didnt want to fix it for whatever reason.
Mods, all the free good ones.
Future? Probably pull engine, reseal it, and run it a lot more. Looking to get 250k out of it. PRAYING for 300k.