Quote:
This is the average gas mileage for my '05 Mazda3 2.3L I4, 5-spd. manual trans. I was using FP60 but switched to Lucas UCL around the end of May just to compare. I think I'll keep using Lucas since it's cheaper and available at AutoZone around the block. Plus, my only UOA from my Mazda came back with 0 flaws so UCL had no ill affect on it like some people say it does.
Month | AVG MPG
-- w/FP60 --
Jan | 29
Feb | 28
Mar | 28
Apr | 31
-- w/Lucas UCL --
May | 31
Jun | 30
Jul | 32
Aug | 32
Sep | 33
UOA: '05 Mazda3 / 7500K mi. /Pennzoil Platinum 5w20