 All right. You know, at idle going down the road, you'll see 15 percent short term at idle. You're probably going to see three to five, five to six on a healthy engine. All right. But see what the numbers are. All right. Last, take a look at the O2 sensors. And we're most concerned with the upstream, the O2 sensors that are before the cat. Do you have any propane or any way to artificially enrich the fuel mixture?