Recent content by rberndt

changed oil before adding Harrop S/C. tuner did ~18 dyno runs tuning it for stage 1 and then stage 2. I drove it for another ~3000 miles after the tuning. not bad. I'm sure there are better oils, but at $2.6/qt & i change it every 5k.....this'll do.

I'll do a oil sample next change. ~Jan-22 I'll bet the oil is fine & no increased wear metals. This thing still gets 20mpg cruising on the highway - not so much if you use the pedal on the right. Since Costco now carries 5w-30, I may give it a go next year.

2020 Tundra S/C'd Harrop running ~6psi 31k miles on motor - 5k on the S/C using Kirkland 0-20 change every 5k I don't tow or haul. any benefits of moving to another oil or weight? if so, which one?

Thanks all. Now that I have some data, yes I'm hooked and will be doing a follow up UOA @ ~10k. I have a 2011 Lexus 460L that has the same engine block as the Sequoia, but it uses 0w-20, and has a 9qt capacity. I'm presently using M1. I hear good things about the Toyota 0w-20, but am too lazy...

1st analysis on the Sequoia 4.7l. She's been quite well behaved. no major repairs. Always had M1 from 5000 miles. roughly 6000mi OCI's. Always used Fram filters. Blackstone recommends trying 9500 miles. Oil M1-5w30 Miles on Oil 7.6k Miles on Car 110k Filter Fram Ultra 3600 Sample Date 3/19/14...