Looks like your engine prefers 30 over 20.....but not the Exge if it's making a racket at startup.
The clatter has happened just 3 times in all those miles, otherwise it sounds great. I'm very happy with it. I was just playing around when I put 5W-30 in, but I do like the higher HTHS for the low rpm operation. When passing through a town at ~45 mph, it will typically remain in top gear at ~900 rpm and with gentle pressure on the go pedal, will just accelerate back up to speed without dropping a gear.
Not sure why the two are so different in calcium and magnesium. Is one a D1G2 and other is not?
That's correct, only the 5W-30 is dexos1 Gen 2. I'm not sure if the 5W-20 was even labeled as dexos1. I think Castrol had gone to labeling/licensing only 0W-20 and 5W-30 for d1.
Sorry, sorry, sorry.... I did not run an orange can Fram for the 9557 miles on the previous run. I originally tried posting three OCI samples but after some time I had to give up and save time, so I only posted two samples. On my very first OCI on this truck, I used Motorcraft oil and a Fram orange can. They worked great, but skipped it here.
The 5W-20 run for 9557 miles had a Purolator Boss filter. I just finished a 14 hour day and not at my best now. My apologies for the goof.
Looks very good Dusty. Thanks for posting this
Thanks Adam. Good to hear from you.
I would say look to the filter for the valve clatter for a leaking ADBV. However, it continued till you shut it off? How long was that? I heard valve clatter on my '13 5.0 when first starting up after an oil change (priming the chain tensioner). So that is normal. But it did not last but a few seconds.
I had considered changing the filter, but other than the three times, it has been quiet at startup. And since the clatter starts 30-45 seconds after starting (no timing chain rattle at all), I'm guessing that there's something else wrong. Can the fancy timing go haywire temporarily? Those three times it made all the racket, it went on for as long as I left it running.
I estimate the first time was probably close to a minute before I shut it off. Immediately after changing the oil and filter, I fired up the engine and watched the oil pressure come up (slight delay with new filter) and noted how quiet everything was. I walked to the back of the truck and opened the garage door to let the exhaust out (windows were open already), and while I was back there, the loud clatter began. I walked all around the front of the truck listening and the racket seemed to be coming from both cylinder heads.
The second time was in August, I believe. I had backed out of the garage and was backing up to my porch to unload a new washing machine. Again, at least 30 seconds after starting the engine, the clatter began. This time I started moving the truck all around my driveway and lawn as I listened. I think it had to be 1-2 minutes before I shut it off and it carried on the whole time.
The third time was fairly recent in ambient temperature of about 4 degrees after sitting for the day. Was quiet at startup, but while brushing the snow off... yup, loud clatter that continued until I finished with the snow and turned it off.
All three times, I restarted the engine and it was very quiet again. I've told a few people that my engine has a very faint knocking sound, but it can only be heard from under the truck. I'm not sure it's correct to call it a knock, it's nothing scary but I've never listened to any other gasoline engine from underneath, either. It doesn't sound bad at all when revved so I have stopped being concerned for now. No ticking whatsoever, though. It makes great power and gets amazing fuel mileage for such a heavy truck.
One has 1,500 miles of extra use on it. Kinda hard to make a reasonable educated conclusion with that data. It’s not an even comparison.
But definitely safe to say that an 8,000 mile interval will have less particles in it (assuming the oil filters will work the same.
The oil is still in the engine and unless I buy a new truck, I'll update when I finish the OCI. It'll have at least 10k miles on it when I drain it, and have an entire winter of use behind it.