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Oil analysis isn't cheap either

If you want to blindly follow the manufacturers guidelines (the same manufacturer with terrible quality and record recalls), go right ahead. Remember the beancounters get to overrule the engineers. Let that oil life meter go down to 1% before you change the oil too! And don't modify your car...

It's amazing how people throw out perfectly good oil as well. Again, the oil isn't anywhere near "acidic" so come up with a new reason to tell people why to do it. Other than "the manufacturer says..." you can get a brand name filter and 10 quarts of full synthetic for much less than $100 too...

Yes 2" would make more hp. How much.....?

It's just a waste of money. Just like the people that change it before winter storage and after. These same people never flush their brake fluid either. I like how Castrol puts on the bottle "up to 25,000 miles or 1 year" he said the oil will have a "considerable buildup of acids", which isn't...

Plenty of people have proven with oil analysis that the oil will not magically become acidic after 365 days.

Can you get an eraser wheel in there?

This whole thread is

Mustangs aren't bikes

Is it easier to move your hand through cold or warm oil? edit: this site has the worst text editor

There's also more friction because the oil isn't warmed up yet Also, wouldn't a non fully expanded piston seal worse and make LESS power? Mustang7g, the source for old wives tales!

It doesn't. Once your throttle is wide open your "intake" extends all the way to the air filter either way it's not wheee the runners or fuel or so it doesn't matter. It's not a car spacer.

The part it changes doesnt affect that

Ambient air is the "cold air" underhood air is going to be like 120 degrees

I believe Lund did some but with bellmouths or something on the throttle bodies

the oil life monitor doesn't know what kind of oil you have in there

You get what you pay for with tires. Not a great tire but if you're not racing and just want to save money they're OK https://grassrootsmotorsports.com/articles/kenda-vezda-uhp-max-kr20a-tire-test/

The whipple/roush tunes are very different as one only has a single throttle body

There's two intakes and two throttle bodies now. That means you have way, way, way more airflow than you could ever use on a 5 liter engine. So it's extra pointless to "upgrade" the piping, filters, etc Plus they're running MAP so you don't need to tune them differently than even running a...

Nope