from a member on honda-tech.com
quote: use "5w30 you'll lose some horses with 1030 b/c it's thicker. i saw in a magazine with a civic and they did a tune up and changed oil with 1030, then dynoed it, numbers were lower than baseline, so they changed the oil, and the numbers jumped back up. i dunno how accurate that is though, i don't have any real experience."
quote: use "5w30 you'll lose some horses with 1030 b/c it's thicker. i saw in a magazine with a civic and they did a tune up and changed oil with 1030, then dynoed it, numbers were lower than baseline, so they changed the oil, and the numbers jumped back up. i dunno how accurate that is though, i don't have any real experience."