12V VR6 oil preferece

[timiteo]

I used Penrite HPR10 10w-50 full synthetic in my VR6 (as you mentioned) as I used to peak 110 degrees C with a 10w-30 or similar. If you're running high RPM for extended time then a higher hot temperature oil weight is beneficial.

In multi-grade oils, the W term means "winter" and relates to the maximum viscosity of the oil at low temperature (cold start). The other number after the dash is the viscosity limit the oil must achieve at 100 degrees C. So a higher number means it won't thin out as much at higher temperatures and provide more protection.

Viscosity means an oils (or liquids) resistance to flow and shear fyi.

Have a read of this if you want, it's quite interesting:

Oil Viscosity Explained

[The_Hawk]

With my VR6 I started with fully synthetic Fuchs Titan Super GTO 10-40w but I did find the oil consumption was pretty high at almost 1L / 1000km. I pretty much just kept a 1L bottle in the car and poured it in every second tank of fuel.

I then switched to Castrol GTX 2 20W50 (This is now labelled as GTX in a grey bottle, there is also a white bottle of "GTX" but it's slightly different). With the GTX2 I didn't burn as much oil and otherwise had no adverse effects. The VR6 does run pretty hot after all.

As for changes, I did mine every 6 months, of nothing else it gives you a good excuse to crawl under the car and make sure it's all still together

[stefcio007]

Interesting read.
If it's anything, when I tried to start today engine was having none of it. Only on the second try did it come to life enough to start.
Too cold of a night?

[stefcio007]

Did a service today (drove up some small wooden blocks and had enough clearance) and switched to Penrite HPR 10W50. I've noticed a difference on cold starts, it's much better than before. It also feels more responsive but that could just be a placebo effect or because of fresh oil.

Thanks for all the advice.

[VR28LT]

Did a service today (drove up some small wooden blocks and had enough clearance) and switched to Penrite HPR 10W50. I've noticed a difference on cold starts, it's much better than before. It also feels more responsive but that could just be a placebo effect or because of fresh oil.

Thanks for all the advice.

Thats good to hear.... more then likely the lower viscosity made the motor crank over easier on a cold start. HPR10 is definetly my favourite oil for these cars. My previous VR6 ran like a dream but had a huge thirst for oil something chronic like 500ml every 1000k so topups were killing my wallet, im very lucky now my latest VR6 which i picked up a few a weeks hasnt consumed one drop!

[stefcio007]

New oil sump plug also fixed my very very small leak, who knows when this was last replaced...
I assume my temps would be slightly higher with this oil yes? That's what I've noticed.

[VR28LT]

Tbh ive never taken notice of oil temps differences with running different oil. How much higher are we talking about?

[stefcio007]

5°C nothing to be fussed about I guess.