Just a thought--what weight of oil are you using in the wintertime? Mine was a bugger if I didn't change over from 20-50 wt before the cold weather hit in eastern Oregon. That heavier oil turned to custard when the mercury dipped. Jennifer -- To subscribe or unsubscribe, send email to scirocco-L-request@scirocco.org, with your request (subscribe, unsubscribe) in the BODY of the message.