UOA#3

 

Looks good to me!

I guess this 5w20 stuff is the real deal.

 

There are two things that jump off of the page at me. The first is the viscosity@100. I assume this is kinematic viscosity but the saybolt viscosity is also close to the same measurement. It has changed viscosity to a 40w. That is not allowable in the 153-H spec. The other is the lead. There is no lead in a Triton engine-none. It will never appear as a wear metal in a Triton engine. MC does not have it as an additive or element tracer so somewhere you picked up some lead. Obviously, not a lot but I would be looking for the source anyway. I would agree that the Tritons give off a lot of silicone in spectroscopy. The test does not distinguish between silicon, silicone, or silica, and they are not the same. The report otherwise, is all too typical for the 5w-20's with low wear metals. I certainly wouldn't change anything but I would watch the viscosity at the next oil change and watch for the source of the lead.

 

The oil I used in the sample was put in at the dealer while I was there getting some work done. I do not know for sure if they actually used 5W-20, but I am assuming so.
This is probably a mistake on my part.

 

The " NA " is sodium . I believe you have the start of a internal engine coolant leak . That's probably why your 20wt is now a 40wt .

Sodium is a performance additive in certain oil but not in the Motorcraft . I'd try to obtain another analysis kit " ANA Labs = 8 bucks " and sample again to be sure and note to them you are looking for engine coolant since this engine is apparently still under warranty .If it comes back positive and your loosing coolant waste no time taking the report along with your concerns to your dealer or you could have the coolant system pressure checked at a radiator shop now and that might be best in terms of speedy/accurate trouble shooting of this type .

Is this a work truck ? I'd use a good 5w-30 after warranty is expired if so . JMO

 

I don't get it, the last reports had MO as 32 then 38 now it's 26. NA was 6 then 8 now 17. FE 15 then 13 now 6. lead 1 then 1 now 5. TBN 2.5 now 6.9.

"Sodium is a performance additive in certain oil but not in the Motorcraft "
Could it be that the Ford dealer put in different viscosity oil or even non-Motorcraft oil?

 

That would be a question to ask them .Anything is possible to include Lab error since the glycol test was negative and the VI is high. Most labs keep samples for 30 days or so . You might even call them and say hey, my oil was a 20wt , what's up with the report .

What lab did this test out of curiosity ?

I'd have the coolant system pressured up if it were mine . No kidding IMO you have a leak if the lab report is correct and a 20wt was used at the Dealer .

Don't do anything on my account though . These are my opinions and how I would go about looking into the problem . And a problem you have somewhere be it the motor , lab or dealer . 20wt dino's don't thicken like that without reason and oxidation was not one of them per the lab results .

 

I jumped ship from Blackstone to Oil Guard on this one. I got that three pack.
I will do another UOA in 2 months @ 5K before I bring it to the dealer for a tranny service and have them pressure check the cooling sys, if this last test was not an anomoly.

 

Thanks for sharing your report. That viscosity is also what jumped out of the page for me. Since oxidation is low, that much thickening in 5000 miles is puzzling.

Jim

 

that looks very good. The TBN says that that oil has some good use left in it even after 5k. Not sure where the water came from? Possible contaminated sample?