I use EVOO in my DT's, and sometimes as a pre-poo.

I use EVCO as a pre-poo way more commonly than EVOO, especially overnight (when I know I'm washing in the morning). I use it as an additive to LI once in a while, and as an additive to PT's, in that it's suppose to aid in protein retention.

EVCO has some natural SPF qualities.

I find EVCO can be co-washed out where EVOO cannot. (At least for me).

I have put EVCO on dry hair (mainly in the summer when it will stay liquidy - otherwise it makes my hair feel dry when it solidifies in it), but find EVOO on dry hair can be tragic for me!
2c/3a/3b, Fine/med, Dense, high porous, & normal elas.

Lo-poo - Renpure Keratin, SMR, Giovanni SaS
clarifying - mix Johnson's H2T with low poo
Co-wash - Suave Nats. clar. or coco.
RO - GVPCB, Ion Eff. Care, TN.
LI - SMR, Cure Care, or RO
Seal - MO or Jojoba
DT - + honey, ACV, & EVOO to SM masque & GVPCB
PT - Gelatin!, CNPF
Styling - FSG, AIF, BRHG, LALS/PS, GF curl spray gel, SM Souffle/Smoothie, LOOB
Oils - MO!, EVOO, jojoba, GSO, SM Elixer, EVCO, VO5 Hairdressing