Originally Posted By: mazdamonky
My vote go toward whatever the cheapest synthetic 5w30 you can get is. I would stock up on some of the NAPA 5w30 or do some mail in rebates on Pennzoil or mobil at the time. If I was looking for the cheapest normal price, I would just buy supertech synthetic 5w30. Any should be sufficient for this car. I personally stocked up on some Castrol Edge 5w30 and 10w30 as it is my preferred oil and I got it on sale for $20 oil and filter a while back, but would use any of them. They should all work fine.
mazdamonky has the right idea. If your OCI is 5,000 miles, any synthetic oil and filter will protect your Prelude just fine. And 5w-30 is the right weight. Walmart is your friend for buying oil and filters.
Good luck.