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Anyone Else Using Penrite 5W-30 On Their Vq35?

rambocarebear
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rambocarebear Contributor

rambocarebear

Posted
Posted

Guys,

Recently flushed the oil and replaced it with this and ever since the engine sound and whilst driving the car, it doesn't seem to be running at optimum performance. It is very strange. Best way I can describe is as though the performance of the car after the oil change is performing like a car that is due for an oil change... .

Anyone able to offer feedback on this ? Am I using the wrong oil ?

Car has got 78kms on the odometer

The Max Mentor

The Max

Posted
Posted (edited)

I use Penrite HPR5 5W40 in mine but it's a VQ37VHR motor. At any rate, I've always used either Penrite or Amsoil depending on the required viscosity on all my vehicles. Never had an issue.

Edited by The Max
Nightcrawler Grand Master

Nightcrawler

Posted
Posted

I literally changed my Nulon 10W40 to Nulon 5W30 when I serviced my 35 today. Haven't driven it properly yet, but can report back tomorrow night after I have done some km in it tomorrow if you want.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Oil viscosity is critical to camshaft actuation, and changing the grade will mean the ecu needs to re-learn the camshaft PWM input figure for a particular advance target. This should happen eventually over time, or it may need to be done via the Nissan consult software. Probably easier for you to dump the 5w30 and put some 10w40 in there, it should feel a lot better.

You may have also dislodged some burnt oil varnish with the flush, which has partially blocked the little filter in the actuator solenoid.

In a nutshell, run a 5w40/10w40 and stick to it, and change your oil every 5k.

sonicii Veteran

sonicii

Posted
Posted

Bloody shitty nissans...I change the oil in my Honda every 10k with factory spec 5-30...i even changed it to 10-40 and 10-30 once......vtec still worked fine yo!!

Isn't VTEC just 2 fixed cam settings and it switches between them? if so, it is a bit different to variable valve timing on the VQ.

anyway, I have run castrol edge 5W-30 in mine since I have owned it, without any issues.

Hertz Donut Proficient

Hertz Donut

Posted
Posted

Just changed the oil in my PNM35 (also on 78,000km) to Penrite HPR10, which is now rated at 10W50. Not ideal but I'll see how it goes, it's generally just puttering around town at the moment on shorter trips.

ARTZ Grand Master

ARTZ

Posted
Posted

Isn't VTEC just 2 fixed cam settings and it switches between them? if so, it is a bit different to variable valve timing on the VQ.

anyway, I have run castrol edge 5W-30 in mine since I have owned it, without any issues.

f**ked if I know, who cares its a honda...lol...

it does use oil pressure to switch between setting i think though....or something like that :wacko:

  • 5 months later...
Hertz Donut Proficient

Hertz Donut

Posted
Posted (edited)

Heh, I just changed to a 5W30 (Castrol Edge Titanium, was on special at Supercheap) and haven't noticed any difference, although I should really check the oil level to see if it's using any up.

PS: The VQ35 dipstick still sh!ts me to tears, so damn hard to get out without scraping all the oil off in the first place, and then nigh-on impossible to get back in again. I swear the dispstick is the best (and only good) thing about my POS Commodore.

Edited by Hertz Donut
scotty nm35 Grand Master

scotty nm35

Posted
Posted

PS: The VQ35 dipstick still sh!ts me to tears, so damn hard to get out without scraping all the oil off in the first place, and then nigh-on impossible to get back in again. I swear the dispstick is the best (and only good) thing about my POS Commodore.

So why check it? Just dump the 5L in and be happy for 5K.

Hertz Donut Proficient

Hertz Donut

Posted
Posted

Funnily enough that's exactly the tactic to which I've resorted. Oil change every 3 months means there should be something left in it, and I got the same amount out as I put in last time I changed it (start of this month) so it seems healthy enough.

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