Long term users of 10w60, Post a Pros/Cons Review

[keith reed]

Many years ago Street Machine changed the editors car with Royal purple oil and claimed an increase in power
of 5 rwkw. I changed the oil in my vh to royal purple. Didn't make any difference on the dyno so I changed
back to what I had previously. Perhaps the oil they had in the first place was a very heavy oil. I could not
justify the cost of the royal purple for no gain.

[BLACK 346]

Many years ago Street Machine changed the editors car with Royal purple oil and claimed an increase in power
of 5 rwkw. I changed the oil in my vh to royal purple. Didn't make any difference on the dyno so I changed
back to what I had previously. Perhaps the oil they had in the first place was a very heavy oil. I could not
justify the cost of the royal purple for no gain.

Royal Purple is only expensive here, I have seen it on the shelf in the US about the same price as our cheaper oils here.

[Red CV8 R]

@ Red I don't see the difference between the Royal Purple 10w60 and the Edge 10w60 you run now except for the cost?

No idea, it just made my valve train quite noisy and it was already quite noisy back then (years ago). It's different now as the new cam is very quiet plus it has a Trunion upgrade which makes it more quiet again. So it's nothing I could directly compare since the edge only went in with the new cam.

[white lie]

Not using Edge10W60 again! It made my VZ L76 run really high end hot! (too thick) I thought it was suppose to keep oil temps low! Yes I have an Oil Temp gauge. Ive heard mineral oils are good at absorbing heat, synthetics don't!

What do you mean by "high end hot"?
Never had an issue with oil temp, been running 10W60 for the best part of 10 years, even on 45° days, it doesn't miss a beat.

[Drewie]

It is amazing the hype and marketing that goes into oil these days, no doubt the oils of today are a great deal better, but I can't help think back to the 70's, back then I had a V8 manual XY Fairmont with quite of few mods, I ran that on 20w50 Mobil Super Mineral Oil for around 200,000 km, no rev limiters back then, valve bounce was when you hit the limit, that engine never missed a beat and was running fine when I traded it. I also had a brand new Cooper S that was highly modified and that regularly saw 8000 rpm, ran on Mobil Super Mineral 20w50 that also gave no problems. Maybe they built engines stronger back then.

[Micks]

It is amazing the hype and marketing that goes into oil these days, no doubt the oils of today are a great deal better, but I can't help think back to the 70's, back then I had a V8 manual XY Fairmont with quite of few mods, I ran that on 20w50 Mobil Super Mineral Oil for around 200,000 km, no rev limiters back then, valve bounce was when you hit the limit, that engine never missed a beat and was running fine when I traded it. I also had a brand new Cooper S that was highly modified and that regularly saw 8000 rpm, ran on Mobil Super Mineral 20w50 that also gave no problems. Maybe they built engines stronger back then.

Agree with you, though back then no unleaded fuels, mostly cast iron engines too. The newer fuels make cylinder & head/valve operate at greater temps! Hence the need for better oils.

[white lie]

What sort of kW/L were you pushing out then compared to now? Perhaps similar RPM limits but nowhere near the same stress IMO.

[whitels1ss]

What sort of kW/L were you pushing out then compared to now? Perhaps similar RPM limits but nowhere near the same stress IMO.

You're not wrong there!

How things have changed over the years, not just with much better power but also much better fuel economy.