Which Amsoil?

Reply Subscribe

Thread Tools

Search this Thread

Jul 17, 2008 | 02:20 PM

#16

AH64ID

Registered User

Joined: Nov 2007

Posts: 4,737

Likes: 4

From: Kuna, Idaho

Quote:

Originally Posted by TonyB

I agree...the 5W40 should be winter and 15W40 summer. I currently run Valvoline 15W40 year round. But, we only get to overnight freezing temps December & January. Not like areas where there is white clumpy stuff on the ground!

Tony

Here is the thing with Amsoil 5w-40, its designed of for the 2007+ engines, and while it can be run in the older enignes it doesn't have the service life of the HDD or AME...

Pick the HDD or AME and run it, year round... The HDD has a lower number on the bottle but amsoil claims it outperforms the AME in all temps and conditions.. guess well see if my oil analysis agrees.

Jul 18, 2008 | 09:30 AM

#17

Boss Hoss 540

Registered User

Joined: Feb 2005

Posts: 170

Likes: 0

From: Texas

Been running the 5-30 HDD for 84k-----change filter and add a qt at 10k change at 20k. Could go longer but makes me feel better.

Jul 20, 2008 | 04:48 AM

#18

Lurch519

Registered User

Joined: Jun 2003

Posts: 194

Likes: 0

From: Youngtown, Arizona

I just turned 149,000 miles and have been running Amsoil since about 24,000 miles. No problems so far. Even with the 110 plus temps here in Phoenix, I don't see problems with oil pressure.

Jul 21, 2008 | 12:29 AM

#19

Bigiron

Thread Starter

Registered User

Joined: Aug 2006

Posts: 148

Likes: 0

From: San Francisco Bay Area

I decided to go with the HDD 5-30 and do oil analysis every 10k miles. I am also going with the Amsoil aeo full flow filter and the their bypass filter. I will switch over as soon as I get the bypass filter installed. I am going to be real interested to see if the lighter weight synthetic oil makes any difference in my fuel mileage.