what engine oil for 99' Integra DC4 Gsi

[JDM DC2R]

Proper synthetic is double to triple the price. Not all full synthetic are FULL synthetic, there only semi. Eg castrol edge 5w-30
Im not saying get homebrand oil or something. But id spend around the $30-$35 dollar mark. And just service regularly!
If you every got your car serviced at Honda they use there semi synthetic oil unless you specify other wise!

[Fredoops]

Proper synthetic is double to triple the price. Not all full synthetic are FULL synthetic, there only semi. Eg castrol edge 5w-30
Im not saying get homebrand oil or something. But id spend around the $30-$35 dollar mark. And just service regularly!
If you every got your car serviced at Honda they use there semi synthetic oil unless you specify other wise!

Castrol Edge uses at least group 3 synthetic base, no mineral oil in there.
- if they dont use group 3 or higher, they cant legally call it "full synthetic"

and they dont cost "3x" as much as you claim.

semi-syn castrol magnetec 5w-30 is almost $40 dollars, valvoline durablemd semi synthetic is almost $60, while Penrite HPR5 is only $50 and is group3 synthetic just to name 1.

Im using group 5 racing grade synthetic oil thats like $60 for 5 litres from the US, not that expansive.