WMP Penn Super Two stroke, Meets and exceeds the standards as required by Rotax. Well priced, I normally buy 20l at a time, about R560, if I remember correctly.
Know a lot of people who uses this oil including some schools. I changed from fully synthetic as it was just too expensive.
Seen some motors that were opened at 600Hrs, using this oil from day 1, pistons and rings still in very good nic.
For your gearbox I recommend CASTROL SAF-XJ
Dont read to much on this topic, the information below is all you need, it can become very confusing if you read too much, just stick to standards as outlined by Rotax. See below:
Engine Lubrication
2-stroke oil specifications
Rotax recommends using a "super" two-stroke oil which corresponds to ASTM/CEC standards and/or
API-TC classification. It is also essential to choose an oil which is designed for an air cooled engine
even if you own a liquid cooled engine.
2-stroke oil type
For most Canadian users a mineral or semi synthetic oil is recommended.
Synthetic oil should only be used by those who operate their engine nearly every day. Even when shut
down, air is constantly circulating through a 2-stroke engine; it is never sealed like a 4-stroke engine.
Even though it has excellent lubricating properties, a synthetic oil does not effectively protect a
stopped 2-stroke engine against corrosion: it tends to attract moisture and will run off the parts rather
than leave a protective coating.
Mixing
If you own an oil-injected engine, you simply need to keep your oil tank topped up frequently.
Otherwise, it is necessary to premix your oil and fuel. The ratio is 50 to 1, or 2%. This means you
would mix 400mL of oil in 20L of fuel, 500mL for 25L, and so on. Using more oil than recommended
would not help your engine in any way: it will accelerate the formation of carbon deposits which will
eventually break loose and accelerate wear.
Rotary valve lubrication
The oil used in the rotary valve lubrication circuit of liquid cooled engines (462, 532, 582, 618) should
be the same 2-stroke oil used for primary engine lubrication.
To be avoided:
Oils whose label do not bear the above mentioned required specifications
Oils primarily designed for outboard 2-stroke engines
Mixing ratios other than 50:1
Gearbox Lubrication
Rotax recommends API-GL5 or GL6, SAE 140 EP or 85W-140 EP gear oil for gearbox lubrication. A
synthetic type of oil can be recommended for this application thanks to the almost-sealed environment
of the gearbox casing.
To be avoided:
Low quality lubricants which will deteriorate long before the recommended replacement interval
(every 100 hours)
Cooling Liquid
For its liquid cooled Aircraft Engines, Rotax recommends a mix of 50% antifreeze concentrate without
sulphates and phosphates, with anticorrosion additives designed for aluminium, and 50% distilled or
demineralised water.
It is possible to use a higher proportion of water if you have overheating problems, but it is important
to consider the effect on freezing point. The maximum ratios specified by the antifreeze manufacturer
should not be exceeded since deposits may form inside the cooling circuit.
To be avoided:
Low phosphate and low sulphate antifreeze
Water which is not distilled or demineralised
Excessive mixing ratios
Spark Plugs
The recommended spark plugs are the NGK B8ES or BR8ES. The "R" denotes a resistance which
helps suppress radio interference. The use of spark plugs with a solid tip, rather than the screwed-on
tip, is mandatory. The latter can unscrew itself in flight and dislodge the spark plug connector cap,
creating an ignition failure.
Spark plug gap
Allowable range: 0.4-0.5mm / .016-.020"
Optimal: 0.45mm / .018"
The gap can be reduced to its allowable minimum to help starting in very cold conditions
To be avoided:
Other spark plug models and other manufacturers' equivalents
Screwed-on tips
Unverified spark plug gaps
Fuchs Lubricants SA Locations
Western Cape Lubricants (Pty) Ltd
Gerber Boulevard, Gants Centre, Strand, Cape Town
Tel: +27 (0)21 854 4808
Fax: +27 (0)21 853 2366
Email:
wmpenn@iafrica.com
SPECIAL TWO STROKE OIL
DESCRIPTION
Wm Penn Special Two Stroke Oil is a premium quality lubricating oil designed to meet the demands of modern air
cooled, two-stroke motor cycles, lawnmowers, chain saws and other similar two-stroke engines.
BENEFITS
• Low ash oil exhibits excellent anti-wear properties.
• Freedom from ring sticking and exhaust port blocking.
• Freedom from plug fouling and piston crown deposits.
TYPICAL DATA
Colour Blue
Kinematic Viscosity @ 100°C mm2/s 15
TBN mg KOH/g 2,6
Sulphated ash % 0,11
PERFORMANCE LEVELS
• API TC
• JASO FC
• ISO-L-EGC
APPLICATIONS
Air cooled, two stroke engines in:
• motor cycles
• lawn mowers
