Im sure this has been discussed here before but Im curious to know how many people other than myself are big fans of using Shell Rotella T4 15w-40 conventional over the T6 5w-40. Im a firm believer that for non severe use and just everyday driving conventional oil is a fine choice so I see no reason to not use it in my motorcycles. Id be more than happy to spring the extra $7 for the gallon of synthetic but with my logic if Im not putting synthetic in my V8 Mustang then Im not putting it in an old ninja or KLX. For the last decade its been working very very well. Just want to hear other Rotella users opinions on using their conventional or synthetic.

 

I use the T4. Priced great and safe for wet clutches.

 

Simply put, as long as you use a name brand oil that meets the specification you bike needs and change it regularly; any oil will be fine. Me, I run Castrol ActEvo 10/40 semi syn just because I like it.