FLYBOYJ
"THE GREAT GAZOO"
The 4:1 were claims and many unconfirmed when compared to combat loss records.me 262 kill ratio was 4:1 in the air. Almost all bombers protected by allied fighters. ME262 was not a dogfighter it was a bomber interceptor and fighter bomber. ME 262s often operated with FW 190s for protection especially during takeoffs and landings. The 4:1 ratio against escorted bombers was plent good enough for Germany to win the air war over Germany if only they had enough ME262s. They didn't. They had so few that their contribution was close to zero.
"German Jets in Combat" by Ethell and Price: "from a detailed study of British and American records it appears in the fighter role it caused the destruction of no more than 150 Allied aircraft-for the loss of about 100 Me 262 in aerial combat"
I'm sure some of members have additional information on this subject.