Welcome to the VTXOA in winter!


people can get short in the winter here - don't take it personal. hans is a stand up guy and will give great advice.

FWIW I put the stupid energy conserving stuff in a bike years ago when this nonsense first started. You will know ifyou do it - the clutch slips. bad. I replaced the clutch - but some just drained it and ran different stuff and it cleaned it up.

Oh, and most run the 15W-40 rotella. To be honest there was an old oil write up by tapper years ago that explained the differences. You might see if you can find it. it was most helpful in explaining why 10 (or 15) W 40 was the way to go.

Does it have the "Energy Conserving" seal???
https://www.vtxoa.com/forums/7-vtx-1...ml#post4618582

I have not found t5 10-40 on the Shell Rotella site.
https://rotella.shell.com/en_us/prod...nd-oil/t5.html

Looks like changes from what Homedepot has.

Out of stock at several places.
Discontinued???

I think your right about the discontinued I cant find it anywhere else. home depot doesn't show the back of the bottle so cant be 100%sure on that

I also went to the rotella sight and couldn't find it there either

no hard feelings just saw what I saw

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so the final answer to the milion dollar question is rotella 15w40

thank you everyone for your help

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Rotella T4 15W40 is good oil. Rotella T6 5W40 is synthetic and will flow a bit better during cold starts. Frankly either is good oil. Some prefer the synthetic, others prefer to save some cash and use the T4. As far as I know, no one has ever had issues with either.


My son has a '94 VFR750 and has been told by several owners to never use synthetic with that engine. The manual makes some reference to that as well. With parts as scarce as they are for that bike, he just uses the T4 15W40 in his bike and it's been great. Always used the same in our dirt bikes, when we had them.

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i screwed-up and used Rotella T6 5-40 rather than Rotella T6 15-40 last time.

Checked the empty jug in my shed this morning, it said T6 5-40

No screw-up. That's what T6 is. It's just a bit thinner when it's cold. Same viscosity when it's warm though. What you did won't hurt a thing, in fact you went full synthetic. If anything, that is better.



You'll find that quite often, full synthetic oil has the numbers further apart as synthetic just flows better when cold. Absolutely nothing to worry, or at all be concerned about. In my snow-blower I use 0W30. I can pull start it at -40. With 10W30 the engine would barely spin. Pull starting was out of the question. It's still the same, more or less, when the engine is warmed up.

As far as I know, there is no "Energy Conserving" category any more. A trip to Walmart yesterday and I could find no such marking on any brand or weight of oil in the API donut. Many of them have "Resource Conserving" and it looks like that is the new category, and not the same as the former "Energy Conserving". Does that mean that oil bearing the the Resource Conserving mark is also bad for wet clutches ? I can't find anything that recommends one way or another.