92 prelude

I just picked this up for 2400 for my daily to work It’s a 1992 how do I know if it’s an SI or not from what I have read the VTEC did not come out until 1993. Also are these motors known for burning oil? And what type of oil do y’all like to use in it? I’ve had 88 to 91 CRX I’ve had a 9295 civic coupe I’ve had a hatchback& accord. I haven’t driven a manual in over 20 years I love this thing , drives amazing