Again, i was not recommending anyone to go the way i am with the oil. I have my reasons and I'll take my chances. If I were to go up at all it would only be to 5w-30, but we will see how the next batch in my catch can looks. Last batch was way too thin but oil on dipstick still felt right/good.
Here is some "light" reading on shear.
A 5w-50 is still 5w at cold-start. I run Mobil 1 5w-50 without issue over the last year since I went ESS. Also, the GT500 Predator engine is NOT flat-plane and they use 5w-50 with less power than I am making.
A G3 and 100mm should get you close to 900. But if I were you I’d do the G3X and run a smaller pulley just to be sure. I can’t speak on the G4, not a lot of guys run that. The G3R seems to be much better than the G3 and could be an option as well.
You're right, JMeiers - my bad on the Predator engine classification. Thanks for the correction.
Absolutely gorgeous, Scott! Orange Fury is one of my favorite colors that Ford has ever made. I have similar strut tower covers to yours, but don't have any color on them. Got them off of Ebay. Were you able to buy them color-matched or did you have a shop spray them?Finished my install. Nothing left to do but enjoy!
So in this very article, it says to keep the two numbers closer together as to prevent shear to the base oil used. The second number is based off the additives resisting shear. (If i read that article correctly)
(exaggeration for humor)
I believe it does as they will re-flash the module. But realistically this is a better question for your custom tuner. If you have an A10, I'm sure the BCM does a lot more with it. All the CAN buses are connected one way or another, as they need to talk to each other. You reset one of their brains, it's going to be confused I'm sure
Viscosity in fluid terms, is the fluids ability to hold a shape. Think about syrup in a drinking glass. If you turned the glass upside down and put it on a table really quickly, then picked up the glass, and the syrup didn't stick to the glass, it would maintain the shape of the glass for a little bit before deforming and flattening out on the table. If you did the same thing with a glass of water, it would hold the shape of the glass for a lot less time then the syrup would. The syrup has more viscosity. In laymens terms, its thicker. Well, which of those two viscosities do you think would maintain a fluid barrier when subjected to pressure, better? There's a point where the viscosity of a lubricant becomes too thick to be beneficial, but I don't believe we are approaching it at a 5w-50 weight.So in this very article, it says to keep the two numbers closer together as to prevent shear to the base oil used. The second number is based off the additives resisting shear. (If i read that article correctly)
So a 10-50 would be better than a 5-50 oil for shear purposes. However, i don't know what that does to your valvetrain on startup. Or one could go to the age old 20-50 weight which takes an hour to drain a quart into the engine
At which point, it sounds like i personally could benefit from some Lucas oil stabilizer(or some form of oil additive for shear resistance, I'll do more research today), i haven't checked the properties to see if it's the CPO or HCI or whatever it was in the second article about which polymer was better. But I'll be way more willing to throw in an additive than I'm willing to change the entire engine's oil to a higher weight.
As
As always, thanks for the info. Also fun note, he said that the synthetic oil and the mineral oil has the same flow rate so that's fun. But he never elaborated on the shear resistance. But given the factory oil is a synthetic blend. IMO that's why i like it so much. It's the best of both worlds
edit: https://www.napaonline.com/en/p/LUC11097
This seems like a good investment to go with lower oil viscosities, for those of us running thinner oil
Shear resistance and viscosity are two different things expressed in a similar environment. The oil guy stated that the Viscosity Improvers are what are left after the base oil is sheared. At which point, you could fill the entire 8qt pan with straight Lucas heavy duty oil stabilizer if you think that more viscous is better all the time. (I know you don't as you stated too thick is a problem) but that begs the question, why not run 5 quarts of 5w-50 and three quarts of heavy duty stabilizer which has a rating of 112 Cst's? Wouldn't that be even better??
