I replaced the spark plugs in my Dad's 07 Camry today. I'm concerned how the old ones look. This car consumes about 1 quart of oil every 1000-1500k miles. I used the same p/n as the old for the new plugs(NGK Iridium). Car idles and runs smoother. Overall acceleration is better.
Should I be concerned? Engine running too lean?
Should I be concerned? Engine running too lean?
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