What filter?
pf63 OEM ACDELCO
How cold are you thinking.
0 degrees F
Once you get down to the cloud point; the point where wax crystals start to form, GTL relies on PPD's to keep flowing. PAO doesn't. That's why the pour point for PAO is so insanely low. PAO has no wax, so there is nothing in the base to form crystals. However, since PAO is blended with other bases and carrier oils, those other bases and carriers may require the overall blend to have PPD's in it.
What about ester, what benefits do esters bring to the table over Group III?
Esters have extremely good high heat handling, but can also negatively impact seals (swell) in high doses. This is why they are often used to counteract the shrink effect PAO has. They have excellent solubility, but are also very expensive. They also don't tend to handle moisture very well, which can be problematic. This is why esters are usually used in a fractional or complimentary role with a more traditional base (Group II+/III/IV) as the primary.
At 0F there will be no practical difference between an oil with a 0W or a 5W winter rating and the base stock is irrelevant at that temperature.
Reply back on the smooth running and quiet idle when the Castrol has the same miles on it that the Valvoline had when you dumped it.
Think jet turbines, that is their primary use. But, please read that STLE paper.
ok 700 miles, I will inform you, in 3 weeks.
I just read the STLE paper, but honestly, some of this is Dutch to me.
What's wrong with having fun?
Yes. That temperature was just random and hypothetical though.
