:whs: Had an amsoil distrubutor come in once a month for idle issues he finally quit with the amsoil pitch and started running dino oil and changing it more often in his high miles turd.
Hard starting... IE.. longer cranking times. it happens with mine @ about the 5K mark with 5-40 synthetic rotella
i've read around, some guys go 10K with the bypass system... but idk... some trucks at my work go 5-25K miles on Rotella 15-40... but that's big cat and cummins engines...
My truck runs fine on Amsoil I have stated this before I am on my 4th oil change going on 85k.
Oh yea it runs like a top and I drive it as if I had stole it.
Bill
I will absolutely sh#t myself if this knock is from the oil. It drives me nuts that it is totally beautiful sounding until the oil hits 170. I drove it today to pull the trailer around and I had a couple of short stops. The oil never got over 160, sounded beautiful. I am changing the oil tomorrow.
My wife sent White Buffalo my analysis. It did have the lowest viscosity at 100 celcius of all of my prior samples. I am curious to see what everyone in the "fluids" forum thinks.
Are you able to post it up here? I did notice that the viscosity numbers at 100 celcius were the lowest ever. All the wear stuff looked great. But I wonder if changing the oil will have an effect.
Oil analysis looks very good. All wear numbers are low, a very good report. Copper is nice & low, good to see.
The oil viscosity is getting close to a 30 weight oil. The CST@100C reading on your report was 12.72. That is at the low end of a 40 weight oil. The range for a 40 weight oil is 12.5-16.29. You can see this yourself on the chart posted on PSN in the Fluids Discussion Forum, sticky on the Comparative Viscosity Chart. Here is the link:
You can push this oil a bit further but not much. I would change it if it was my truck. A 8,000+ mile oil run on a PSD is a damn good run. No fuel, water or antifreeze – that’s great – your PSD looks nice & healthy. TBN retention was good also, didn’t drop much from baseline at all.
Rotella Synth 5W-40 is a good oil for the Powerstroke. I don't believe your knock is oil related.
"I will absolutely sh#t myself if this knock is from the oil." = me too........
change it!i change mine as soon as i looks alittle dirty on the stick ....may only have 1000 miles or so..... i like new oil and i also change the top end oil every time with prolong:ford:
The knock was VERY slight, hardly noticeable and started shortly after the RR and I figured it was because I still had the LL. It started to get worse lately, so I ran a CCT and #8 failed and had 2.9%-4% on rotational velocity. I changed the LL for a standard AD and it made no effect. The truck runs fine, just has this new bleepin knock that was not there until about 1-2k miles ago and is only there when the oil gets past 170 degrees. Life would be so good if an oil change would get rid of it, but probably not going to happen.
Yep, using AE. The buzz is fine on all 8 before and after LL change out and the CCT and rot velocity look the same. The compression on that cylinder was 375 on a stone cold engine. I only checked the compression of that one cylinder. The truck runs fine.
The knock is still there. I have not driven it since the weekend, but I am sure it did not go away. I am toying with the idea of building an injector breakout box and trying to isolate where the knock is coming from. I am first going to look at my fuel pressure and see if adjusting it will make any difference.
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