Recent content by johnmyster

Chevron has said that 550 ppm is the K threshold for coolant contamination. For me, it's when coolant starts to disappear, but since my truck isn't a 6.0 powerstroke, head gaskets, egr coolers, and oil coolers are the least of my concerns...

Ford did, by saying 1% P is a requirement. At the time it was the easiest way to blame exclude some CK-4 oils that were hurting ford's fragile heui injectors, scorpion lifters, etc. Oddly other manufacturers don't seem to care. Again, it isn't the wt% P, it's the formulation. I thought this...

I've used HD delivery receipts for Rotella rebates (also shell) multiple times, no problem. I wait until after delivery and append the receipt PDF to an order status showing delivery. See bold part in terms:

That's a lot of words to assert that 1% P is a wear performance metric. I guess VOAs tell us everything we need to know about an oil. There isn't a delo (or delvac, or valvoline) 5w-40 that carries F1. The limited number of 5w-40 options with F1 was the OPs point. I'm merely pointing out the...

WM needed something to happen, FRAM bankruptcy or otherwise. They had shelf space layout for four Fram lines, Mobil, ST, plus the OEM lines. Then their was the Fram "diesel" line that was redundant with everything else. Didn't they have Bosch too in recent history?

Two types of people, both hanging out on bitog. Those that think elemental quantities on an oil analysis tell them everything they need to know, and others that realize those elements form molecules which actually do the protecting/performing, and then in combination with other compounds...

Purchased from walmart, in-store, paper receipt. Submitted May 15. Received June 3.

I keep a license with each of my cdl logbooks and each set of license plates.

FWIW, I have ordered donaldson fuel filters via crossfilters through amazon and it shipped from CF. I wouldn't suspect that option to be risky in terms of counterfeit.

Does Crossfilters ship to you?

There are lots of 15w-40s on the approved F1 list, but 15w-40 is not the first or second listed grade in the 6.7 owners manual, if at all. Engine builders I trust have attributed spun mains to 15w. I personally wouldn't, but I don't own a 6.7 psd so I'm as big of an armchair expert as any. In...

The bottle says "recommended for" but not "meets or exceeds" regarding Ford-F1. The (perhaps outdated) list: https://www.fcsdchemicalsandlubricants.com/additionalinfo/dieseloilsWSSM2C171F1.pdf

If O'Reilly will price match walmart on the initial purchase it's a great deal.

On this forum? No way. If you're limiting yourself to F1 approved 5w-40, I would not hesitate to use T6 and file for the rebates. Maybe consider/use other oils in the rest of your fleet. If you were willing to step outside of F1, my choice would be to buy ESP pails at TSC and again, file the...

OMG so much foam.