11-12 normally on a basically stock 2002 SRX. Always use less fuel than Polaris 6-7 twins, 1-2 gallons on a fill up. Love it. More power, better mileage.
about exactly 12mpg on my '01 srx, 14-15mpg on the '97 sx 700 with aaen pipes, 12mpg on the '01 SX 700R stock, went down to 10-11mpg with simons pipes.