5w20

csheatz · December 23, 2009

amsoil sent me 5w20 in my order but due to the holiday I dont have time (or dont want to waste time) sending it back. can I use the 20wt oil? what is the difference? this oil would be used for....

2006 silverado

2005 sunfire

2008 Lacrosse

1999 GMC 1500

Nytemare · December 23, 2009

amsoil sent me 5w20 in my order but due to the holiday I dont have time (or dont want to waste time) sending it back. can I use the 20wt oil? what is the difference? this oil would be used for....

2006 silverado

2005 sunfire

2008 Lacrosse

1999 GMC 1500

You cannot use 20wt oil in something that calls for 30 wt.

You wont build oil pressure with the thinner oil. Also it wont have the viscosity to fill the clearances between rotating parts.

dlstewart01 · December 23, 2009

GM does not spec it. I wouldn't put it in my truck.

csheatz · December 23, 2009

this is not good, they sent me 24qts

hockeypro1411 · December 23, 2009

this is not good, they sent me 24qts

Looks like you'll be doing the same to them.

Zembonez · December 23, 2009

this is not good, they sent me 24qts

Looks like you'll be doing the same to them.

It might be OK in severe cold but otherwise, it's not gonna work. I agree. Send it back. Cheaper than buying engines.

Hieneken49 · December 23, 2009

sell it to someone with a hemi.

hockeypro1411 · December 23, 2009

this is not good, they sent me 24qts

Looks like you'll be doing the same to them.

It might be OK in severe cold but otherwise, it's not gonna work. I agree. Send it back. Cheaper than buying engines.

There shouldn't be an issue especially if the mistake was on their end. From my experiences, they're a great company. I use a local dealer who delivers anything for free within a certain distance. This happened to me before with an order of some Amsoil 2-cycle oil and he just picked it up when he brought the new stuff. I got a couple free stickers out of it too!