Aermotor Windmill Company Discussion Group | One of the most asked questions about windmills, so I have provided a link for SAE 10W non-detergent oil($3.99 a quart) | Facebook
Non-Detergent 10W | Lubriplate Lubricants Co.
Non-Detergent Conventional Motor Oil by Farm Rated at Fleet Farm
Mystik Non-Detergent General Purpose Oil; SAE 10W, 20W or 30W; Case of 12 -1 Qts | eBay
SAE 10W-30 – VP Classic™ Non-Synthetic Racing Oil
Pure Guard Motor Oil 10W 1 Quart P1461 | O'Reilly Auto Parts
10W-30 SYNTAINICS Motor Oil, 6-QT Pack
Buy the Warren Dist MAG68761 Non-Detergent Oil ~ 30w | Hardware World