Hi Fellow Tsikoteers,

I've been reading this threat lately, currently at page 122.

I've read good reviews and good oil analysis on several Diesel oils. I particularly got interested with the Mobil 1 Turbo Diesel Truck 5w40 oil mostly because of its affordable pricing and great protection properties, however it says that its for diesel engines.
I've read along the line in this thread that its okay to use diesel oils for gas engines, except it aint good for the catalytic converter, but as mentioned by dvldoc, better to have good protection to the engine than have your cat converter compromised. that being said i have a few questions.

1. Is it safe for me to use Mobil 1 TDT 5w40 (Zinc less than 1200 PPM) on my gas engine? (Honda Jazz 2010 1.5V AT)
2. What is the acceptable (safe) level of Zinc on oil for gas engines?
3. Using Mobil 1 TBT 5w40 + Baldwin 7243 Combo - what is the recommended mileage before i do an oil change? i read somewhere here 10K to 12K is safe figure,
4. Am currently using Motul H-Tech 100 5w40 on my ride, will switching to a diesel oil cause any problem? Do i need to flush out the old oil?
5. I cant seem to find a Technical Spec for Motul H-tech 100, im curious how much phos, zinc, boron, calcium it has.

thanks folks.