I only buy Costco gas, so this is the average Costco per state. The State gas tax needs to be subtracted to see the fraud rate.
https://costcogaspricelive.com/
Annual Highway Report
https://reason.org/highway-report/28th-annual-highway-report/california/
No ethanol free here in Kaliforn. But because of the ridiculous price I thought I would start with regular gas. 1500 miles on my 2.7 I switched over to premium and my MPG increased to beat the price difference.
Ford spec. WSS-M2C961 is also WSS-M2C971 rated. (GF-6 and GF-7)
Personally consider the dual port and direct fuel injectors address the IVD issue. As far as the wear issue I do not know another way to follow the wear in an engine other than UOA.
BTW the intake valves use carbon on the intake...
There is no wrong answer. I do like listening to Lake Speed jr. cause his business is used oil analysis. About the only thing he said I do not agree with him is to pre fill an oil filter. Personally, I do the "flood mode" after an oil change. That eliminates any manufacturing boogers in the new oil.
Just my view, cause you cannot go wrong with most any choice.
While GTL oil is group 3 oil, it does not have the drawbacks of traditional group 3 with crude impurities. GTL was given the group 3+ nickname. Shell makes its GTL at Pearl refinery that Pennzoil Platinum uses. PAO group 4 has one...
There was an issue with sodium filled exhaust valves for that year. Ford has addressed. Unfortunately, it was the issue for this engine. After years, engines have no issues with the exhaust valves. Does not mean something else may sneak in but not worried about the welds on the liquid sodium...
A very important point for some engines is the coolant mix with water. I cannot say how important the coolant type is to the Ford 2.7 engine but for Mazda you can do serious damage to the engine by using the wrong coolant.
Was not directed in my direction but short trips are always severe service schedule. If a UOA is performed the oil life is judged first by TBN, viscosity and wear metals. If you just go by every 6 months instead of milage, that should cover it (because short trips=low milage) Some oil analysis...
Honestly have not read this but thought this would contribute to the discussion.
https://www.garrettmotion.com/racing-and-performance/choosing-a-turbocharger/water-cooling-for-your-turbo/
BakFlip MX-4 here. Absolutely love it. I can see where the rails can find a way to get water around it and black RTV can fix it at the seal between the plastic cap/rail. Very easy install but for me I removed the end caps to the rails and slid the mounting brackets on the rails.
Stribeck curve. I have seen 90% at boundary lubrication but thought that was high. Take your choice and make it your own reality.
https://www.youtube.com/@themotoroilgeek/search?query=Stribeck
Engine bearings are just one part of the boundary lubrication, piston rings are constantly going into...
Short trips, cold oil is your main factor. Only a used oil analysis will give you the right information.
It is how you drive. Taxi engines last a very long time because the engine oil stays hot. Additives like moly that are bonded with sulphur and are activated at running oil temperature.
From...