Oil Change Due

[s13_Skyline_inside]

yeh i wouldnt listen to someone who said its the oils fault they lost 3kw when they dyno'd their car on different days lol, can anyone who doesnt like motul give me a real reason, I use penrite anyway im just curious to know why people dont like motul for a good reason

[Kujotk]

nah thats cool, i dint mean that my xr6 t guy was biblical lol, could be right, could be wrong, but every car is different, everyone drives them different, even depends on your altitude of where you dyno the car. the kw gain/loss thing isnt important at only 3kw, but he recons the oil temp with royal purple was on average 75degrees but similar temps, similar driving same fuel his temps would hang around 85 degrees.

to compare with my own experience when my elf is new i average about 70degrees and now when its starting to burn it runs at 80-85degrees and has lost a noticeable amount of power (not dynoed, just from feel of the car).

best is to try differnet oils and keep a close eye to engine temps and work out for yourself which is better for you. Lower engine temp means better cooling by radiator, slightly cooler air getting into the turbo (reduce risk of detination, heat saturation, better more complete burn of fuel) increase the life of the coil packs..... less friction.... all this means better economy, safer more reliable car to run.... common sence really. but use what you feel is good for YOUR car. then pick what is a good price for what you get.

[Primordial]

ive used both motul and elf very recently, and I cant feel any difference, nor see any temp difference...

So what weights were the Royal Purple VS Motul? Which Motul oil was he comparing - 4100, 8100, 300V?

Even things like differences in humidity will see a 3kw difference from one day to the next!

We change the oil so often in these cars that it would never get the chance to go off - except for burning it at track days etc. I dont think the brand of oil makes much difference at all. as long its fully synth you're not going to see a noticable difference if you're comparing oils with the same weight.

[s13_Skyline_inside]

hmmm interesting, yeh ill give motula try next time i change the oil, see what i think of it for myself.

-cheers