Question for oil junkies regarding Amsoil OE vs Amsoil Signature

[Simon99]

Hey guys, about to do my first oil change so I setup a Preferred account with Amsoil and I was just wondering if any connoisseur in oils knew if a difference exist between Amsoil 0W-20 Signature and Amsoil 0W-20 OE other than the fact that the later is 5 bucks cheaper.

Also wondering if Amsoil XL could be a middle alternative quality-wise or if it's just a marketing bullshit (I plan to change my own at the recommended intervals anyway).

Thank you !

[AZP Installs]

The OE is a lower interval than the Signature.

Having been an Amsoil dealer for the past 12 years this is my take...

OE < Signature < European

-Mike Paisan


Maintaining, Modifying and Educating TriState Enthusiasts since 2001.
Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs
"Race Tested, Enthusiast Approved!"

[Simon99]

Originally Posted by AZP Installs

The OE is a lower interval than the Signature.

Having been an Amsoil dealer for the past 12 years this is my take...

OE < Signature < European

-Mike Paisan


Maintaining, Modifying and Educating TriState Enthusiasts since 2001.
Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs
"Race Tested, Enthusiast Approved!"

Thank you for your answer. They only offer the European in 5W-30 or the Dominator in 5W-20. Do you personally think either Signature, European or Dominator are worth it for the extra 5$/quarts for very-spirited/occasional AutoX or should I stick with OE. And if you think they are worth it, can 5W-30 or 5W-20 be dangerous in the BRZ, which recommends 0W-20 ?

Thanks once more for your reply.

Sent from my SGH-I337M using Tapatalk

[bluesubie]

The Signature Series is their top tier oil for standard passenger cars, but it is not API SN or ILSAC GF5 certified. For folks that want to run a certified oil, there are the XL and OE lines.

XL
Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems.

OE
The oil drain interval recommendations for many of today's vehicles extend well beyond the traditional 3,000-mile interval, especially when electronic oil monitoring systems are employed.

If you're pushing your intervals to 7,500 miles, the XL would probably be a better choice. If you change at 5-6k miles, the OE is probably fine. If the recommended interval in Canada is less than 7,500 miles, I would just go with the OE, you can always do a used oil analysis to find out how the oil is holding up.

I would probably go with a 5W-20 over a 0W-20. Looking at the OE line, the 5W-20 is slightly thicker at 100C, has a thicker High Temp High Shear, and has a lower NOACK volatility rating. The XL 5W-20 is even slightly thicker with a slightly better NOACK.

-Dennis

[Simon99]

Originally Posted by bluesubie

The Signature Series is their top tier oil for standard passenger cars, but it is not API SN or ILSAC GF5 certified. For folks that want to run a certified oil, there are the XL and OE lines.

XL
Formulated for up to 10,000-miles/six month intervals, or longer when recommended in owners’ manuals or indicated by oil monitoring systems.

OE
The oil drain interval recommendations for many of today's vehicles extend well beyond the traditional 3,000-mile interval, especially when electronic oil monitoring systems are employed.

If you're pushing your intervals to 7,500 miles, the XL would probably be a better choice. If you change at 5-6k miles, the OE is probably fine. If the recommended interval in Canada is less than 7,500 miles, I would just go with the OE, you can always do a used oil analysis to find out how the oil is holding up.

I would probably go with a 5W-20 over a 0W-20. Looking at the OE line, the 5W-20 is slightly thicker at 100C, has a thicker High Temp High Shear, and has a lower NOACK volatility rating. The XL 5W-20 is even slightly thicker with a slightly better NOACK.

-Dennis

Although I didnt understand a single thing from that post (sorry ) what I think I got is that in the end, XL 5W-20 would be my best bet. Correct ?

[bluesubie]

Originally Posted by Simon99

Although I didnt understand a single thing from that post (sorry ) what I think I got is that in the end, XL 5W-20 would be my best bet. Correct ?

Basically, the specs on the 5W-20 is better for hard driving IMO.

A 5W-20 and 0W-20 may start with the same base oils, but an oil blender will add viscosity index improvers/viscosity modifers to achieve the lower cold cranking of the 0W-20. Viscosity modifiers are usually the first thing in oil to break down, which is why some people recommend sticking with a narrower viscosity spread (i.e. 5W-20 instead of 0W-20).

Yes, oils are improving these days but the specs of all Amsoil 5W-20's point to more robust oils than the 0W-20's.

-Dennis