Mercury 135 Pro XS OptiMax Manual page 32

WARRANTY INFORMATION
Three Stars ‑ Ultra Low Emission
The Three Star label identifies engines that meet
the Air Resources Board's Personal Watercraft
and Outboard marine engine 2008 exhaust
emissions standards or the Sterndrive and
Inboard marine engine 2003‑2008 exhaust
42538
emission standards. Engines meeting these
standards have 65% lower emissions than One
Star ‑ Low Emission engines.
Four Stars ‑ Super Ultra Low Emission
The Four Star label identifies engines that meet
the Air Resources Board's Sterndrive and Inboard
marine engine 2009 exhaust emission standards.
Personal Watercraft and Outboard marine engines
may also comply with these standards. Engines
42539
meeting these standards have 90% lower
emissions than One Star ‑ Low Emission engines.
20
eng