Royal Purple causes a code to pop up???

[BlownGP]

My friend has a 2012 Ram and has been running Royal Purple for a few months now and a P1521 code popped up on his Trinity.

Google comes with wrong weight of oil, but he's using 5w20..
He drained it out and put dino oil in yesterday and no code. Been fine so far.

Are these sensors that sensitive on these trucks? Crazy how far technology has come.

I've read many people running Royal Purple on here, never heard this before.

 

[whthemi12]

My truck did exactly the same thing. I cleared the codes and it hasn't threw a code yet. But ill prolly switch oil next time.

 

[smiley]

That is awesome if it is correct. Could save some motors or at least the MDS feature.

 

[whthemi12]

I forgot to mention I disabled my mds the same day I cleared the codes. Runs very smooth. No more surging. Hasnt affected my mpgs very much. I do a lot of city driving though.

 

[Xtreme545]

I've ran RP for 4k now and never had any problems, that's strange


Sent from rock using chisel and hammer

 

[2K10HemiRam]

I've been running RP for about 32k now with no problems....that's kind of odd

 

[Burla]

Switching from RP to Conventional for performance reasons? Research Used Oil Analysis's on the products you are considering. Send in a sample to blackstone and see what you get. How was the engine running? No lifter noise? Like I have always said, group 4 and 5 oil is the best you can get. RP is group 3 but they go the extra mile and put in a great additive package, so it is a very good oil (good enough for my wife's car), better the dyno oil for sure, but there are better oils out there.

The best advantage to group 4 or 5 oil is better low and high temperature viscosity performance at service temperature extremes, and because RP is not 100% true group 4 or 5, it does not have 100% this characteristic. Maybe the viscosity when hot is causing the sensor to light up. A true synthetic 4 or 5 does not loose viscosity the same way as any other oil when hot or cold. The other major benefit is the shear properties of true synthetic, especially group 5. The benefit that RP has over conventional is better protection for your top end parts, and the oil will stay cleaner longer then any conventional oil. But if you want some of the other properties, you need shell out the duckets and get the real synthetic oil.

 

[BlownGP]

No, he just switched because of what he read on hear and the piece of mind.

It's a 2012 with only 14K on it. No lifter noise.

 

[BlownGP]

Switching from RP to Conventional for performance reasons? Research Used Oil Analysis's on the products you are considering. Send in a sample to blackstone and see what you get. How was the engine running? No lifter noise? Like I have always said, group 4 and 5 oil is the best you can get. RP is group 3 but they go the extra mile and put in a great additive package, so it is a very good oil (good enough for my wife's car), better the dyno oil for sure, but there are better oils out there.

The best advantage to group 4 or 5 oil is better low and high temperature viscosity performance at service temperature extremes, and because RP is not 100% true group 4 or 5, it does not have 100% this characteristic. Maybe the viscosity when hot is causing the sensor to light up. A true synthetic 4 or 5 does not loose viscosity the same way as any other oil when hot or cold. The other major benefit is the shear properties of true synthetic, especially group 5. The benefit that RP has over conventional is better protection for your top end parts, and the oil will stay cleaner longer then any conventional oil. But if you want some of the other properties, you need shell out the duckets and get the real synthetic oil.

I think you need to put this in your sig, because you say it every time a post has to do with oil.. hahahaha

 

[Burla]

Can you find the previous post that showed me talking about viscosity and group 4 or 5 oil?

The point in this post is what I believe that the engine is reading a lower viscosity, not a heavier one. The only way it is heavier is if there is a flow problem leading the sensor to read it as heavy when it is not. Absent that possibility, the oil sensor is reading the oil as being to thin, meaning RP is thinning out at hotter temps for whatever reason. Or it is possible that it is losing viscosity at a normal rate of a group 3 oil but the fact that it has released so much friction the sensor is tricked into thinking it has a thinner viscosity. My point is, run Redline or Amsoil and you wont ever have to worry about it because either product is immuned from viscosity changing with temperature changes.

I'm sure you already knew that. So I will make a note that when you ask a question, it is really is rhetorical because you already know the answer, Hahaha

 

[BlownGP]

Hey, calm down buddy...Was just messing with you.

just FYI. I run supertech synthetic and no codes here.

 

[Burla]

No codes with supertech full synthetic, but also no Moly as tested by pqia. Who cares we don't need no stinking Moly, lol..

pqia analysis supertech synthetic

 

[BlownGP]

pqia analysis supertech synthetic

translation please?