Recent
breakthroughs in the use of radioactive trace elements in Two-Cycle engine oil have
enabled Maxima to develop this research report.
Tests were
made using these gas/oil ratios: 25:1, 40:1, and 60:1. The figures below reflect a 41.6:1
oil/gas ratio - an average taken from the three test ratios.
| Oil
Migration elapsed time thru entire engine |
600 Seconds |
105 Seconds |
4 Seconds |
| Oil
migration dwell times / location |
| (1) |
Up to 30
Secs. |
| (2) |
Up to 60 Secs. |
| (3) |
Up to 210
Secs. |
| (4) |
Up to 300 Secs. |
|
| (1) |
Up to 4
Secs. |
| (2) |
Up to 11
Secs. |
| (3) |
Up to 37
Secs. |
| (4) |
Up to 53
Secs. |
|
| (1) |
Up to 0.2
Secs. |
| (2) |
Up to 0.4
Secs. |
| (3) |
Up to 1.4
Secs. |
| (4) |
Up to 2
Secs. |
|
| % of
unburned oil & oil combustion products discharged in exhaust gas |
98.6% |
99.4% |
99.7% |
Of
the remaining oil in the engine after it is stopped, 4.5% is retained on the piston/skirt
and cylinder wall (1); 4.5% on the piston ring (2); 1.3% on the piston pin bearing (3);
and 2.5% is retained in the crankcase, and 63.2% is retained on other components, such as
rod and cylinder wall surfaces.
CONCLUSIONS
- Many engines
are over-lubricated at idle, sufficiently lubed at half throttle, and marginally lubed at
full throttle. At full throttle for long periods of time, severe engine damage may result
from insufficient lubrication.
- As the engine
size decreases and RPM's increase, oil migration times decrease dramatically.
- Oil moves
through and around internal engine components at various rates.
- Oil retention on
major engine components (after engine is stopped) decreases as RPM's increase.
|
Maxima Recommends: Oil/gas
ratio must vary according to anticipated use:
| |
Recreational |
MotoCross
/ Enduro / X-Country |
Road
Racing / Flat Track / TT |
| 50
- 125cc |
50-60:1 |
25-32:1 |
20-25:1 |
| 125
- 250cc |
50-60:1 |
32-40:1 |
20-32:1 |
| 250cc
+ |
50-60:1 |
40:1 |
25-32:1 |
|
