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ENGINE
298
Take care not to spill gasohol during refueling.
Gasohol may cause paint damage.
Fuel tank capacity
96 L (25.4 gal., 21.1 lmp.gal.)
FACTS ABOUT ENGINE OIL
CONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling
the inside of the engine, and plays a major role in maintaining
the engine in proper working order.
Engine oil consumption
It is normal that an engine should consume some engine
oil during normal engine operation. The causes of oil
consumption in a normal engine are as follows.
Oil is used to lubricate pistons, piston rings and cylinders.
A thin film of oil is left on the cylinder wall when a piston
moves downwards in the cylinder. High negative pressure
generated when the vehicle is decelerating sucks some of
this oil into the combustion chamber. This oil as well as
some part of the oil film left on the cylinder wall is burned by
the high temperature combustion gases during the
combustion process.
Oil is also used to lubricate the stems of the intake valves.
Some of this oil is sucked into the combustion chamber
together with the intake air and is burned along with the fuel.
High temperature exhaust gases also burn the oil used to
lubricate the exhaust valve stems.
The amount of engine oil consumed depends on the
viscosity of the oil, the quality of the oil and the way the
vehicle is driven.
More oil is consumed by high−speed driving and frequent
acceleration and deceleration.
A new engine consumes more oil, since its pistons, piston rings
and cylinder walls have not become conditioned.
When judging the amount of oil consumption, keep in
mind that the oil may have become diluted, making it
difficult to judge the true level accurately.
For example, if a vehicle is used for repeated short trips and
consumes a normal amount of oil, the dipstick may not show
any drop in the oil level at all, even after 1000 km (600 miles)
or more. This is because the oil is gradually becoming diluted
with fuel or moisture, making it appear that the oil level has not
changed.
The diluting ingredients evaporate out when the vehicle is then
driven at high speeds, as on an expressway, making it appear
that oil is excessively consumed after driving at high speeds.
Summary of Contents for LX 470
Page 4: ...INTRODUCTION iv ...
Page 8: ...PICTORIAL INDEX viii INSTRUMENT PANEL 00X001i ...
Page 10: ...PICTORIAL INDEX x INSTRUMENT CLUSTER Vehicles sold in U S A 00X002u ...
Page 12: ...PICTORIAL INDEX xii INSTRUMENT CLUSTER Vehicles sold in Canada 00X014p ...
Page 16: ...PICTORIAL INDEX xvi ...
Page 22: ...QUICK REFERENCE 6 ...
Page 38: ...KEYS AND DOORS 22 ...
Page 68: ...GAUGES METERS AND SERVICE REMINDER INDICATORS 52 ...
Page 98: ...EXTERIOR EQUIPMENT 82 ...
Page 176: ...AIR CONDITIONING 160 20X018d Air flow selection See Lower vent on page 168 ...
Page 188: ...AIR CONDITIONING 172 ...
Page 252: ...STARTING AND DRIVING 236 ...
Page 302: ...MAINTENANCE 286 ...
Page 350: ...ELECTRICAL COMPONENTS 334 ...
Page 361: ...INDEX 345 ...