2005 Toyota Tacoma Owners Manual - Page 259

05 02.25 Iridium- tipped spark plugs (2TR- FE engine) 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 essential that the oil level be checked regularly. Toyota recommends that the oil level be checked every time you refuel the vehicle. Your engine is fitted with iridium- tipped spark plugs. Brake system Without the system- vehicle stability control NOTICE Use only iridium- tipped spark plugs and do not adjust gaps for your engine performance and smooth driveability. The tandem master cylinder brake system is a hydraulic system with two separate sub- systems. If either sub- system should fail, the other will still work. However, the pedal will be harder to press, and your stopping distance will increase. Also, the brake system warning light may come on. NOTICE Failure to check the oil level regularly could lead to serious engine trouble due to insufficient oil. For detailed information on oil level check, see "Checking the engine oil level" on page 344 in Section 7- 2. CAUTION Do not drive your vehicle with only a single brake system. Have your brakes fixed immediately. With the vehicle stability control system- This brake system has 2 independent hydraulic circuits. If either circuit should fail, the other will still work. However, the pedal will be harder to press, and your stopping distance will increase. Also, the brake system warning light may come on. 2005 TACOMA from Mar. '05 Prod. (OM35862U) 259