Reply to "Is this screen too fine of mesh? Opinions?"

OK, today is oil day again!

The first oil change was to Joe Gibbs Hotrod 15-50.

I've researched oil pretty heavily, and I know I want to stick with regular Dino oil, not synthetic.

High levels of zinc, phosphorous, and ZDDP are my main concern.

Previous owner ran 20-50.

Now, since I've gone and installed this finer mesh screen, and that if it were to cause an issue, it would only be from high revving with cold oil..

I plan to run basically the same weight oil (20-50).

Now,, it gets to freezing here in the winter, not crazy cold, but we have many frosty mornings, and the occasional cold spell that cracks pipes up here in NorCal.

My first oil change that started the whole fiasco (engine not starting, weeks of troubleshooting, to eventually find metal bits in the engine from a failure that was not disclosed to me when I bought the car) was Joe Gibbs 15-50 "hotrod" oil, non synthetic, with high levels of all the good stuff.

Do you think that IF, say the screen DID cause restriction with the cold oil, that the 15-50 would be better than 20-50?

15-50 would be thinner when cold right?

I wish I could find Swepco oil locally. That stuff is the shiznit.

I'm sure I'll be fine as long as i don't rev it to 6000 rpm upon startup, and allow the oil to reach operating temp (above 180 in my book).

Honestly, I'd rather have the oil run hot occasionally than too cool.

During the 2-3 hours of enjoyment I've had driving Snow White, oil temps ran at around 200-210 and went up to 220 when I drove it hard (the one or 2 times I actually romped on it) which is perfect in my book, and if I take it to a track day and the oil temps go up to 250-270 every once in a while, I'd rather see that than add a cooler and run cold oil temps.

So what do you think? Do you think the 15-50 would be more prudent to run than 20-50?

Do some oils run thicker than others given the same weight?

My requirements pretty much run it down to Joe Gibbs 15-50, or Brad Penn 20-50.