Quote Originally Posted by rna800 View Post
I have the 4JJ1. It's an 08 model with DDI Iteq engine. It has always been that way. After the 1,000 km break in, I tried it right away and at 175 kph, it was almost done. It just didn't want to go faster anymore. Perhaps it will but the speedometer was literally crawling already and at times it will slow down or reduce speed which feels like it has its own speed limiter.

I don't know if I did the proper break in but I did bursts before even reaching 140 then back to 100 then burst to 120 and so on but I didn't go beyond 150. Something like that. I just didn't let it go beyond 3k rpm for long period of time. Most of the time I let it play in the 80 to 100 kph in its first 1,000 kms and that was also the reason why I was able to pull off that more than 1,000 kms in one full tank but I couldn't do it anymore thereafter.
bro you can't compare the performance of your 4-year-old truck to the newer ones. dont forget that you are in the PH, the home i guess for the most dirtiest diesel fuels, especially those of Petron. engines and systems of same trucks/models are created equal, even the settings at every ECU. so as time passes by, the performance of your truck depends mostly on its health.

another info, i have a friend who owns the same model you have - 08. when we compared our engine, there is a slight difference between the 08 and the 10. i can't tell the part name but its a thing above the turbo. try comparing it with other newer models for you to see.