- Joined
- Feb 7, 2024
- Messages
- 4
Hi All,
I've been using Australian Delo 400 15W 40 for 20 years in absolutely everything on our farm, from little Honda motors up to the ATV's, trail bikes, car and tractor. Never an issue, all run very well.
Now they've gone and changed it, and it seems my choices are the 2 in the title. Guy at the Caltex depo reckons Gold Ultra is the same old Delo 400, but I'm not sure he was correct.
www.caltex.com
www.caltex.com
I won't get into whether Delo is suitable, I've proven that to myself over 20 years. Just need to know which of these 2 is more suitable for gears and wet clutches in particular.
Thank you,
I've been using Australian Delo 400 15W 40 for 20 years in absolutely everything on our farm, from little Honda motors up to the ATV's, trail bikes, car and tractor. Never an issue, all run very well.
Now they've gone and changed it, and it seems my choices are the 2 in the title. Guy at the Caltex depo reckons Gold Ultra is the same old Delo 400, but I'm not sure he was correct.

Check out this link! Delo® 400 MGX SAE 15W-40 | Heavy Duty Diesel Engine | Caltex Australia
An API CJ-4 premium heavy duty diesel engine oil formulated for on-highway and off-highway applications using either High Sulfur or Low Sulfur. Learn more.


Check out this link! Delo® Gold Ultra SAE 15W-40 | Multifunctional Diese | Caltex Australia
A high performance, multigrade, heavy-duty diesel engine oil specifically designed to lubricate a wide range of engines to prolong engine performance.

I won't get into whether Delo is suitable, I've proven that to myself over 20 years. Just need to know which of these 2 is more suitable for gears and wet clutches in particular.
Thank you,