2020年11月20日 · 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.

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2020年12月11日 · Founder, American Sand Association - 40,000 Glamis acres re-opened with 9,000 to go. 2020 XP 4 Turbo S, PRP Heated Seats & door bags, Rok Blokz, Rugged Comms, Eibach Dual Rate Springs, Wide Fender Flares, XTC Street Legal Kit, AZ Plated, S&B, OEM Tires & Spare, STU Sand Tires & Douglas Wheels, Polaris Seat Storage, Light Bars, Seizmik Mirrors, Weddle Transmission, ST Limit Straps, AA BOV ...

2021年3月21日 · Just curious if anyone changes from PS4 5w-50 to the extreme duty 10w-50 for summer. I am getting ready to change oil in new pro xp4 and summer temps in Midwest will be above a 100 ocassionaly and maybe to 110, is it worth switching to the extreme duty or should I just use the 5w-50 I have on hand?