Tune Ups Key to Reducing Vehicle Pollution
The article explains how HC, CO and NOx from engines fuel smog and how future auto designs aim to cut pollution. It notes most pollution now comes from pre 1968 cars, while newer models with devices like catalytic converters reduce emissions, and emphasizes that regular tune ups by owners are crucial to lowering pollution.
Vehicle inspection rejects rise from visibility issues
The article notes high rejection rates for vehicle inspections due to visibility problems. It highlights common failures in lights and windshield wiper systems with some areas reporting up to fifty percent rejection. Experts advise frequent headlight aiming checks and replacing wiper blades every six months.
Tuned engine cuts pollutants by half over idle
A tuned engine in Michigan and New Jersey reduces emissions by about 50 percent compared with the same engine at idle without a tune up, highlighting cleaner operation after maintenance.
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