add 18 Wheeler - American Pro Trucker (USA) SLUS-20210_E0DADD1A widescreen 16:9

[crashGG]

add 18 Wheeler - American Pro Trucker (USA) widescreen 16:9

[pgert]

I assume you mean "better than to enable Show Overscan".
In that case, make it like this:

[Widescreen 16:9]
gsaspectratio=16:9
author=El_Patas & lanyer
description=Gameplay 16:9, better than to enable Show Overscan.
patch=1,EE,001D4C3C,word,3C013F40 // 3C013F80 (Increases hor. axis)

You can also add this, wilst at it:

[Widescreen 16:10]
gsaspectratio=Stretch
author=El_Patas & lanyer
// converted by pgert
patch=1,EE,001D4C3C,word,3C013F55

[Widescreen 15:10]
gsaspectratio=Stretch
author=El_Patas & lanyer
// converted by pgert
patch=1,EE,001D4C3C,word,3C013F64

[crashGG]

It is best to enable "Show Overscan" at the same time to get the full picture and ratio