"Drugs" have nice effects short term. But the long term effects aren't worth it.
Check with your state gov't. Here in Ontario the MOT offered rebates on CNG installations for years. Not sure if they still do; the feds offered tax rebates. One guy I know that converted a gasser blazer "leased" the CNG tank for a reasonable amount (can't remember what he was paying) but methinks it was around $20/month. Saved way more than that on gasoline alone. Another bought the tank but leased the home "pump" (heated the house with NG) and it "filled up" overnight. May be worth checking in to for you.