I ran an Olds 455 in a jet boat for years. Castrol is the only oil the motor ever broke down and it only took about 10 hours. I thought the top end had went south on me. Changed over to Royal Purple and I was good to go.
What's the advantage of "Diesel" oil in a bike?
More of everything as I understand it. Higher zinc content, more like a moto-specific oil, and better ability to keep the "dirt" suspended.
Lots of info about that over at
www.bobistheoilguy.comI tried it based on tons of recommendations on the VTX forum when I had one, and based on the BITOG site, and was happy with it, so I continued using it on the Connie. Well, it went in the Bandit first, and now the Connie.
I used to use MX4T or whatever Mobil 1 calls it now, but a change to my current oil, Mobil 1 TDT, and Ive noticed NO difference in the way the bike sounds or works. I know sometimes guys notice a difference in shift feel, or some hear different sounds even, but when I switched, it sounded the same as always and worked the same as it had on the previous MX4T too...and its about half the price.
Of course I wouldnt use an oil simply based on sound or feel, but some do judge oils that way, so I thought Id throw that last bit in there.
Personally, I like having synthetic in the engine. Some dont. Its just one more thing to add to the oil debate, but it boils down to using what you are comfortable with in the engine, based on everything you have come up with doing your own research.
And, while I like the TDT oil, I do feel a bit better with a moto-specific oil in there, and really, its not THAT much more expensive to use it. Heck, I spend probably 4x more on oil in my truck in a year than I do on the bike! Not to mention the other two cars...so $40 an oil change in the bike, even if its twice a year, is nothing.
