5w20 oil

[aldive]

Has anyone used 5w20 or 0w20 synthetic oil in his or her truck?

I am wondering what effect the change will have on fuel mileage.

Comments….

 

[Black Magic]

I have always used 5w-20 motorcraft synthic blend

 

[aldive]

In my never ending quest for better mileage, I am considering the swap to Amsoil 5w20.

Dead Link Removed

 

[jssong]

what do all the numbers stand for? i know for my x 5w30 is recommended.. what happens when u use something other than that? any adverse affects?

 

[aldive]

Originally posted by jssong
what do all the numbers stand for? i know for my x 5w30 is recommended.. what happens when u use something other than that? any adverse affects?

I have been using Amsoil 0w30 for quite some time; only effect is improved gas mileage.

 

[wpurple]

0W30 vs 5W20

Wouldn't Mobil 1 0W30 be better for engine longevity?
The 0 would allow the oil to circulate faster upon startups and that is where 99% of the wear is.

 

[aldive]

Amsoil doesn't have a 0w20 ( yet ). I will run it as soon as its available.

 

[aldive]

Has anyone else switched to 5w20?

 

[Brans Freestyle]

the diff type of oil you use normally sticks to driving conditions. 0w10 or something like that would be ideal for very cold climate, since the w is 0, it will be able to get into the engine parts in very cold conditions. i use 10w30 in mine, but of course its winter here in cali and its 80 degrees but the colder you get the smaller the numbers. at least, thats what i think i learned in my auto class