i have been running shell rotella t 5w-40 synth in my 96 1400 suzuki intruder motor cycle for about 4 years now, and the bike loves the stuff. no problems at all and i can go a little farther between oil changes as well. all tho it says its a synthetic blend, its still dino cracked but works very well

proud new owner of a 1974 plymouth satellite sebring plus in decent shape, let the fun begin