Nothing burger.
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Nothing burger.
If you have a way to post this to an Internet site like PhotoBucket, JPEGBay, etc. You can then link to it and people can view it full size.
The PDF link on your 1st post in the original thread works fine.
I'm puzzled why users don't look at that.
I went through all of the posts on his previoius thread. As far as I can see they are all jpg files. I didn't see any PDF files.
However, his last jpg was very readable. (Post #8)
It is interesting to me that he went 1,000 miles further on the Amsoil than he did on the Mobil 1. The cSt Viscosity #'s converted to standard SAE viscosity (both oils starting out as 40 weight) are as follows.
Mobil 1 - 11.45
11.4 = 31.6 weight
11.5 = 31.9 weight
Amsoil - 13.06
13.0 = 36.3 weight
13.1 = 36.6 weight
I've got the full cSt to SAE Viscosity conversion chart if anyone wants a copy. What most people do not realize is that any oil that tests out above 10w is rated 20w. An oil that tests above 20w is rated 30w and so on. So your 5w-40 oil could be anywhere from 31w to 40w right out of the bottle. Most reputable manufacturers will produce a product closer to the number claimed. The real difference is in how well the oil retains that upper number over time and mileage.
TBN (Total Base Number) is another little understood number. Basically, higher is better. In a nutshell. The combustion process creates corrosives which enter the engine oil. Modern oils are armed with additives which protect engine components from being damaged by these corrosive contaminants. The TBN # measures the amount of anti-corrosion capability remaining in the lubricant.
When both the Viscosity and the TBN numbers are well above minimums, it means you can go further before needing an oil change. When these numbers fall below minimums it means you are not servicing that engine soon enough.
https://www.spyderlovers.com/forums/...4&d=1555940005