March 18, 2011
Looking to tune up my 92 Buick LeSabre?
I’m wondering if there are any special spark plugs that actually save fuel economy. Ive seen the E3 spark plugs… Also, what O2 sensor brand is the best? I was thinking about replacing mine.
Is SNG a good 02 sensor manufacturer?
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Filed under Gas Conservation FAQ by on Mar 18th, 2011. Comment. 
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Comments on Looking to tune up my 92 Buick LeSabre?
I would stick with regular plugs. You will not get the money back for the other ones via fuel mileage. As for the 02 sensor, Bosch makes a good one.
Stick with all OEM Delco parts. I have seen so many problems caused by aftermarket parts at the dealership where I work.
Many reputable parts stores can obtain AC Delco parts, so you do not necessarily have to go to the dealer for them.
ac delco plugs is the way to go on your spark plugs on gm vehicles. as far as the o2 sensor if your check engine light is not on then you should not have to change your o2 sensor. if it was bad your check engine light would illuminate and you would need it scanned with a scan tool to let you know where your trouble is