RE: Oiled my box fan and it broke...
I don't think so. An ac compressor lives in an oil and freon environment without an issue. I think your sleeve bushings are the issue.
RE: Alcohol Detection Systems in All New Vehicles
Seems to me they should either be spending money on self driving vehicles or breathalizers, but not both. What will be the backup when it quits in Death Valley, will the outside sensors allow you to touch your nose and walk a straight line. Me thinks shortening the federal work week to 5 hrs would be nice.
RE: Heat pump question
Is this your only rooftop unit? I have 2 and the gas is controlled by the front unit only. The noise may be ice coming off the exterior fins.
RE: Credit Cards For Fuel Discounts
For gas I use Pentagon Federal Credit Union VISA card which gives me 5% cashback on fuel purchases, comes off the monthly statement (I don't think this card is available any longer). For diesel I use a fuel card from TSD Logistics. This provides discounts at the pump in the truck fueling lanes. Participating stations can change with time. I've found best discount at T/A stations. Funds must be drawn from checking or savings account. If I can't find a discount station I use my PFCU Visa.
