Guys i just changed to caltex havoline delo 400 15w 40-multigrade.
This oil seems to be most highly rated/ best reviews for the td d40 within this sticky as well as most picked oil to use. (in my opinion).
After much discussion and research i found out that my d40 manual didnt have a dpf but my mechanic was running caltex fully synthetic c3 which is 5w 30 oil and specifically for tds with dpf! Also c3 is less thicker meaning more wear on engine if exposed to wrong elements/conditions or decisions (lead foots disease
)
Generally 5w 30 is for more modern, faster running engines/ newer technology e.g. New higher powered stx 550 or 140kw ST.
Since its last service 9,000ks ago the c3 oil had turned really black and engine was sounding very rough at mid range.
I took alot of time picking this next oil as i had changed for myself for the first time ever and wanted to get the oil choice right.
Since putting in the delo 400 i have noticed a very smooth engine (will now change every 5,00-7500), no joke a STACK more power (smooth controlled power through the mid to top end) my engine sounds louder but purring nice and again, smoothly. Also i noticed my clutch a bit smoother as well as transmission. Curious to see how economy goes
)
This oil has made a huge difference to my drive!
I picked up a 20l drum from caltex on mamre rd in sydney near st marys heading out to elizabeth dr for $120. Pretty happy as i can use in my bikes aswell but have heard it being $90 in some places. Have asked for a quote on 60l drum.
All in all very very happy with my first oil change! Given its a thicker oil i can give the ute a little more of a workout but will remember to ease into driving on cold starts. And of course the turbo cooling down after a drive.
Hope this has helped people with their choice on oil! Now time to focus on the 3x common filters and few other oil replacements there after.
Dezz