Which solenoid? BOB
gmac05062023a
Solenoid
Remove the grill
Oxygen SensorOxygen Sensor Location
Not without serious modification, but anything is possible if you have enough money for a conversion.
Bottom of engine, inside the oil pan.
Remove the fuel tank to gain access to it.
I have used regular "87" octane gas in my 1993 Buick Roadmaster for 7 years and it runs like a top. I don't know the gas mileage as my odometer doesn't work, but it seems to be OK.
No, the 1993 Buick Roadmaster does not have the OptiStart ignition system. Instead, it is equipped with a traditional distributor ignition system. The OptiStart system was featured in some later GM vehicles with the LT1 engine but was not available in the Roadmaster of that year.
Remove the crossmember and drop it out the bottom no problem.
flush the heater core in both directions with water