It could've been as simple as Toyota wanting to push the OCI limits or buy themselves a little extra insurance with some more oil.Or it could be something as mundane as changing their dipstick vendors. Or the new, off the shelf dispstick that works for other engines fits and has slightly different markings. Now the full line will register 4.4q instead of 3.9q. Is this an issue? No.However, I concur that it's better to underfill than overfill. Your friend is best sticking with 4qs flat. If you fill it too full, foaming can become a big issue quick. Tell him to just keep doing what he's been doing.
2004 Vibe GT Lava Monotone, Moon & Tunes PackageMods:Homelink17" TenzoR Mach 10s, Black w/ Red grooveTintFormer Cars: '87 Subaru DL, '99 Chevy Malibu (hated it)'99 VW Passat (like it), '99 Volvo S80 T6 (wet dreams are made of it)