Nov 20, 2020 · LSPI is known to have two causalities, both associated with cylinder contamination; 1) deposit fragmentation, and 2) suspended oil particulates. A third possible contributor, fuel aeromatics, is suspect but exceptionally difficult to address and so ignored herein.

Dec 21, 2020 · Another "up to you" kind of thing, I'm simply sharing. 702: Yea, the LSPI timing retard added tended to hurt low RPM stuff. I'd put an aftermarket tune in it but I find locking 8-10 out kept it out of boost and made a considerable MPG jump.

Dec 11, 2020 · Attached is the latest report on our turbo S engine. The first couple were Polaris oil to get a baseline and then I switched to Shell Rotella T 5w40. I'm happy with the numbers of the Rotella even with 1,000 mile oil change interval with is double what Polaris recommends. It …

Mar 21, 2021 · Chevron Delo 5W-40 in the Ecoboost (1 of the only 2 oils I know of that are SN Plus and rated to 40) since I need to protect from LSPI and want a heavier oil in it.