Amsoil Signature Series Motor Oil
Amsoil Expands Signature Series Line
Amsoil 0W-20 (ASM), 5W-30 (ASL) and 10W-30 (ATM) Synthetic Motor Oils join Amsoil Signature
Series 0W-30 to round out the new Signature Series line. Signature Series 0W-30 is now identified by product code
AZO. Product code azo is discontinued and still available while supplies last.
In addition to being reformulated to meet the latest API SN Resource Conserving and ILSAC GF-5
industry specifications, the new Signature Series line features all-new packaging and represents the very best
motor oils Amsoil has to offer, allowing motorists to take advantage of maximum extended drain intervals. In the
interest of consistency and clarity within the Signature Series line, all four motor oils are recommended for drain
intervals of up to 25,000 miles/one year, whichever comes first (15,000 miles/one year in severe service
With the recent introduction of OE Synthetic Motor Oil and the recent reformulation of XL
Synthetic Motor Oil, Signature Series Synthetic Motor Oil provides customers a choice between three distinct lines
of high-quality synthetic motor oil. OE is an outstanding choice for installers and as an entry-level product for
customers who want the benefits of a synthetic, but won’t pay a significantly higher price or aren’t yet ready to
extend their drain intervals; XL is ideal for installers and customers interested in extra engine protection and
the convenience of 10,000-mile/six-month drain intervals and Signature Series is targeted toward customers who want
the absolute best protection and performance, while taking advantage of 25,000-mile/one-year drain intervals.
The new Signature Series line is replacing the previous formulations of the Amsoil top-tier oils
as inventories dictate; orders will be filled with the older formulations and packaging until inventory is
depleted, which may occur at varying times for each viscosity. The new Signature Series 0W-30 (AZO) sells at a
lower price than the previous Signature Series 0W-30 formulation (azo).
See our 25 k mile synthetic oils << click