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The amount of engine oil consumed 
depends on 
the viscosity of the oil, the
quality of the oil and the conditions 
the vehicle is driven under. 
More oil is consumed by high-speed  driv-
ing and frequent acceleration and decel- eration. 
A new engine consumes more oil, since 
its pistons, piston rings and cylinder walls 
have not become conditioned. 
When  judging the amount of oil con- 
sumption,  note that the oil may be- come diluted and make it difficult to 
judge the true level accurately. 
As an example, if a vehicle is used for re- 
peated short trips, and consumes a nor- mal 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 di-
luted with fuel or moisture, making it ap-
pear 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. IMPORTANCE OF ENGINE OIL LEVEL CHECK 
One of the most important points in proper vehicle maintenance is to keep the engine
oil at the optimum level so that oil function 
will 
not be impaired. Therefore, it is essen-
tial that the oil level be checked regularly. 
Toyota recommends that the oil level be checked  every time you refuel the vehicle.
NOTICE
Failure to check the oil level regularly could lead to serious
engine trouble due to insufficientoil.
For detailed information on oil level check, 
see Checking the engine oil levelº in Chapter 7-2. TANDEM MASTER CYLINDER BRAKE SYSTEM 
The tandem master cylinder brake sys- 
tem is a hydraulic system with two sepa-
rate sub-systems. If either  sub-system 
should fail, the other w
ill still work. Howev-
er, the pedal will be harder to press, and 
your stopping distance will be longer. 
Also, the brake system warning light may come on.
Do not drive your vehicle with only 
a single brake system. Have your 
brakes fixed immediately.
CAUTION!
BRAKE BOOSTER 
The brake booster uses engine vacuum to 
power-assist  the brakes. If the engine
should quit while you are driving, you can 
bring the vehicle to a stop with normal 
pedal pressure. There is enough reservevacuum for one or two stopsÐbut no more!
  Do not pump the brake pedal if the 
engine stalls. Each push on the 
pedal uses up your vacuum re- serve.
CAUTION!
Brake system