Amsoil viscositys

[Don in VT]

Hi,

I have searched the solutions link and read as much as I can find on the forum and I can only see the Amsoil 10/40 listed as the oil of choice. I have a low miles 90 (34K) and I am considering using Amsoil 5/30. Is this OK to use as well.

Thanks

Don

:flag:

[ZR1Vette]

The Amsoil 10W-40 AMO is 100% what you should use...it has the correct formulation for a higher zinc and phosphorus mix needed for the LT5 engine. You have it right

[cvette98pacecar]

Hi,

I have searched the solutions link and read as much as I can find on the forum and I can only see the Amsoil 10/40 listed as the oil of choice. I have a low miles 90 (34K) and I am considering using Amsoil 5/30. Is this OK to use as well.

Thanks

Don

:flag:

Here is the link, unless you are planning on driving your Z in the cold stick with the 10-40 high Z.

http://www.amsoil.com/techservicesbulletin/MotorOil/TSB%20MO-2007-08-08%20Flat%20Tappet.pdf

[PhillipsLT5]

http://www.zr1specialist.com/HAT%20Web/articles/Modern%20Motor%20Oil%20and%20the%20LT5%20Engine.pd f