5W30 Signature Series Synthetic Engine Oil 

Manufactured by AMSOIL | Part #AO-ASLQT

AMSOIL engineers their products for enthusiasts seeking maximum protection and performance.

Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best engine oil.

AMSOIL Signature Series Synthetic Engine Oil develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life.

AMSOIL Signature Series Synthetic Engine Oil provides reserve protection, allowing you to go longer between oil changes if you choose – up to 25,000 miles, 700 hours of operation or one year, whichever comes first.

The extreme durability of Signature Series Engine Oil ensures your engine runs stronger, for longer. 

Their Signature Series has a uniform molecular structure that limits evaporation and keeps it where it's needed most – protecting your engine.

Signature Series Synthetic Engine Oil does not contain paraffins (wax) and stays fluid in temperatures of -58ºF and lower. Extreme cold causes other engine oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. 

Amsoil formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic engine oils. 

Please note: These are supplied in either 1x bottle 946ml ('Quart') or 1x bottle 3.78L ('Gallon'). Please ensure you order the correct quantities for your application.

It is always advised to have some left over to ensure the oil level can be topped up after a service if required.

Vehicle Application

• Suitable for all engines which require 5W30 Engine Oil