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Use 6 QTs and don’t overfill: Oil will drain out of the Bronco for quite some time with the drain plug removed. Sometimes I jack up the left (driver) side of the vehicle and let it drain overnight when I do an oil change. This puts the oil drain on the low side of the pan and gets a little...

Just wanted to say this is a cool project and thanks for sharing. A particle count from Blackstone or maybe Wear-check if you can get them to do it would be very interesting. My particle counts with the Fram Endurance full flow are usually in the 17/15/13 range.

I would change it now, yes. The filter too. The reason is that there will be elevated levels of particulates in the oil when the engine is new. This is normal for the first 15k or so but levels are especially high during the first few hours of engine operation. These metal particles in the...

Did you ever get your oil analysis results from last month back? Hopefully USPS didn’t lose it again. Interested to see how the fuel dilution and ESP are doing even on this short interval.

I agree that synthetic base stocks have better cold weather performance, this is due to their higher viscosity index, which measures how much a fluid’s thickness changes with temperature. Therefore a 0W-40 or 5W-50 will often contain desirable (high VI, expensive) “full synthetic” (PAO/POE) base...

5W is only guaranteed to be crankable for cold starts down to about -14F. If those kinds of temps aren’t in play then I agree, a 5W or higher can be used. That doesn’t necessarily mean a 5W or 10W will be better for hot weather. It might be better or it could just be less expensive to produce...

HPL has a bunch of Moly (~800 ppm), here it is with the Unused/Virgin analysis on "BL" row in light blue, 791 ppm Moly. I think HPL "top treats" all of their oil with a Molybdenum compound called MoTDC which is a friction modifier/anti-wear/anti-oxidant compound. Aside from the MoTDC I think...

Also, maybe this should just be our oil analysis sharing thread. In that case here are the results from the first full 5,000 mile run in my wife's 30,000 mile 2.7 OBX non-sasq with the Valvoline Restore and Protect 5W-30. It is producing lower wear so far than my Wildtrak on the HPL 0W-30, but...

Thanks! You drive a lot so good candidate to do this for us! Still looks good. I would definitely be interested in seeing more or all 0W-40. Other than a ~1-2% fuel mileage hit, there probably isn’t a downside to going 100% 0W-40. SAE studies have shown that a higher minimum oil film...

Short tripping contaminates the fuel with combustion byproduct. This occurs primarily as fuel condenses on the cold cylinder walls and mixes with the oil. These byproducts thin the oil and make its viscosity Index improvers less effective. Conventional oils and to a lesser degree Synthetic...

You should head over to BITOG and lay that opinion on them. Report back. If people are using “full synthetic” as an excuse to go 10,000 miles regardless of driving conditions but the blend folks are changing at half that, I could see how the observation might be valid; if the oil change...

Mann+Hummel, while German owned, has a filter assembly plant in Fayetteville, NC where many Motorcraft filters are likely produced. It’s similar to how BMW has a car plant in SC, etc. Motorcraft (or Mann+Hunmel) will never publish efficiency specs, MC just says their filters must meet 80% at...

Honest question since you seem knowledgeable about filters: How did you come to the conclusion that the Motorcraft filter is the best choice? It is made by the German Company Manm+Hummel and they won’t even publish the absolute efficiency rating of their filters (including Motorcraft), probably...

Wix got bought out by Mann+Hummel and has gone way downhill just like Fram has, sorry to say. Same with Motorcraft oil filters.

It’s a company called “Mann+Hummel” that makes Motorcraft oil filters along with Wix, Puralator, Mobil 1 and a bunch of other brands. A company called first brands makes Fram, champion labs, Royal Purple, and Amsoil filters last I checked. A company called Premium Guard makes most of the...

Caveat to all this; I'm aware it's nerdy, and you will probably crash or rust out your Bronco before the wear difference in these filters makes a tangible difference in maintenance. The filter companies are in a race to the bottom and it seems to vary from month to month who has cheapened their...

So I will take the hit and admit to being dumb - these spots were on the outside of the tank, it just took a Brillow pad/abrasive and some scrubbing with glass cleaner to finally get it clean. Shop rags and water had no effect. I don’t know why I didn’t look into the low coolant earlier...

Rear Diff at 30k in an OBX non-sasq with rear locker, changed with Amsoil Severe Gear 75w-140. Last changed at 10k with Valvoline 75w-140. Looked like maybe a little bit of milkiness/metal in the drain pan. I think I will change this again at 50k, definitely no later than 60k or two years...

I hear you, and it was the same reason I used the M1 AFE 0W-30 for awhile in both of mine since it was pretty much the only 0W that had the WSS spec. CarbonSteel did a nice job shedding some light for us on what exactly the Ford spec entails when he paid to purchase the details of it from Ford.

Supposedly Ford would have to prove that the oil caused the failure to hold you accountable for not using an oil with the Ford WSS spec. That protection for consumers is in the Magnuson-Moss act which is federal law. Plus the ford spec is nothing more than a mirror of the latest API/ILSAC which...