Quote:
Originally Posted by Jordo!
I believe the ECU pulls a little ignition timing over 200* F -- not sure how fast the analog gauge responds, but the ECU is probably updating fairly close to real time.
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I need to get a windows laptop or netbook to do some extended datalogging to see what exactly happens when the lag hits.
It does feel like the timing is being pulled because the sensation is the same as when i used to get extreme heatsoak.
I am running 5w40 oil at the moment. Here in Australia, Nissan sells their own oil and i've used it for most of the time i've had my car (about 3 oil changes). I've used Castrol Edge 5w30 (with titanium fluid strength tech - we don't have any other Castrol Edge on the retail shelves here) and i noticed the oil temps were generally cooler by 6*c compared to the Nissan oil.
My most recent change i used Nulon 5w40 and it actually takes effort to get the oil temps up to 90 and beyond. Oil temps are cooler than with Castrol Edge. Most of you guys haven't heard of Nulon before as it's an Australian brand but i'm unsure if they export it.
I dont have any datalogs to prove a difference but i was getting hesitation around 3500-4000rpm (felt unwilling to go beyond unless the pedal was pressed further). Now i get a seamless pull all the way to redline. It felt like the CVTC system wasnt getting enough oil pressure with the Nissan oil so it wasn't functioning properly. Below 3500rpm the car ran fine. I'm very happy with the Nulon oil. I might try their Euro formula 5w30 to see if running the correct viscosity oil will still keep it happy. It does amaze me that Nissan specs 5w30 worldwide. I feel for all those folks who live in the hotter regions of the world like the UAE etc.
Thanks for all your replies guys
Really appreciate your input! I wonder if there is any function in Uprev to disable the oil temp related lag......