WTF ? This goes against all we were taught
 

Check this out .....

MYTH: Light oil such as 5W-30 delivers the best mileage. Utter nonsense. Five decades of road testing and engine dyno testing for efficiency has shown that straight 40 or 20W-50 or 15W-40 delivers the best mileage for your car or truck.

HINT: Drain your light oil and switch to a heavier oil because that will reduce friction in the engine and give it better efficiency and wear protection. We use Torco Oil for best mileage. Torco International is found in Santa Fe Springs, California.

MYTH: Thick oil has too much friction. 35-percent better mileage can be attained in some cases with a thicker oil. But use a good oil, not some cheap brand. The little you save in the cost of oil comes back to haunt you with rapid wear and poor mileage.

HINT: Engines.love a thicker oil because it has less friction and wear. Find oils with SF, SG and SH specifications. Avoid SJ and SL oil ratings. Start using motorcycle oils instead of automotive oil. It is quite easy to demonstrate the fact of thick versus thin. I first did it in 1967. I used to add a few oz. of bright stock to engine oils to reduce friction for better power and mileage.

I think he's full of ****, his whole website makes little to no sense.

The only thing I get from it is he REALLY likes Toroco oil and it's products. I don't brag about my kids that much. I know this is false because I drive my car the same distance to work and back everyday. I normally get 400 miles per tank or really close to that. I changed my oil from 5w30 to 10w40 and I could not get better than 360 miles out of the tank. Even if I pushed it to almost run out of gas. 3 tanks from 325 to 360 miles. I went back to 5w30 and got my 400 miles back.

I'm sure some would argue that you should have gone to 20w 50 then, that your 10w 40 was to thin...

what type of engine does this guy run? I could how maybe higher reving engines would do better with light oil, and slower engines with heavier?

but the whole idea of thiner oil can be showen in bicycles, if you want a really fast bicycle, take the greese out, and replace it with a thin oil, sure you will have to keep oiling your bearings, but you will go faster.

That guy's website is hilarious. About two years ago it was all the rage on fuel economy groups. Now most people don't pay it much attention.

he is using a 2.0 SOHC from a dodge neon. They rev pretty high. Tach goes to 8k and the redline is marked at 6500. Lighter oil right ??

What Website???
 

[QUOTE=badgett]Check this out .....

MYTH: Light oil such as 5W-30 delivers the best mileage. Utter nonsense. Five decades of road testing and engine dyno testing for efficiency has shown that straight 40 or 20W-50 or 15W-40 delivers the best mileage for your car or truck.

HINT: Drain your light oil and switch to a heavier oil because that will reduce friction in the engine and give it better efficiency and wear protection. We use Torco Oil for best mileage. Torco International is found in Santa Fe Springs, California.

What Website??? I wanna see ! :D

Here's my take on his page: https://crxmpg.com/feclaims1.html

here is the link I used ...........https://www.lubedev.com/smartgas/

badgett, This guy says he get 50 MPG+ out of his neon. Since you drive the same you oughta do everything he says on his site and you'll be in the top ten in no time.

5 MPG for Kirker wires
15-35% for 20w-50
35% for 3% acetone for 10 gallon of fuel

These alone will put in basjoos counrty.