I just received a flyer from my local Honda dealer about different service options. All of them include was is referred to as Fuel system and Oil conditioner. The price here in Los Angeles CA for an oil change, rotate the tires, install washer fluid, multi-point inspection and the conditioners is $199.00 US. If you add a new air and cabin filter it jumps to $389.00. If you add a change in the transmission fluid it jumps to $589.00. What are these conditioners? Does anyone know? Do I need to have them added to my 2020 CRV?