Royal purple

srtgtr34 · Post by **srtgtr34** » Sat Dec 19, 2009 10:29 am

I know , I know another rp thread... But this one isn't going to point out the high points of the oil only the lows.

So I was doing some reading on srtforums and came across a thread bashing rp. The oil supposedly ate through his turbo seal letting the turbine scrape the compressor housing.

Some intersting information was brought into the subject like the bottle says, only use on 04 and up vehicles.

Link to thread: http://www.srtforums.com/forums/f10/fml ... ws-547925/

This got me thinking, I have been using rp for a year now ( 2 oil changes), before rp the engine didn't leak any oil, only burned some and my oil sensor didn't go off everytime I brake or change grade.

Now I have noticed 2 spots other than the sensor that leaks and that my sensor is very inacurate.

Putting this together with some info on the thread above do you guys think that rp does in fact eat through seals, gaskets?

Or is it even possible that this is just a coincidence and that even If I change my brand of oil, the same problems will reappear?

Thanks

Post by **occasional demons** » Sat Dec 19, 2009 11:19 am

Were you using synthetic oil before you switched to RP?

Any synthetic oil will leak in places conventional oil will not. The reason being synthetic oil's molecules are much smaller, allowing it to get to places conventional oil cannot. It isn't so much the oil is destroying a seal, it is only finding it's weak spots. This is just a non specific synthetic oil fact.

Now if the seal is physically breaking down, it may be from some additive, or just a poor quality/old seal to begin with.

As for the sensor, I won't comment, as I don't know...

srtgtr34 · Post by **srtgtr34** » Sat Dec 19, 2009 11:31 am

occasional demons wrote:Were you using synthetic oil before you switched to RP?

Any synthetic oil will leak in places conventional oil will not. The reason being synthetic oil's molecules are much smaller, allowing it to get to places conventional oil cannot. It isn't so much the oil is destroying a seal, it is only finding it's weak spots. This is just a non specific synthetic oil fact.

Now if the seal is physically breaking down, it may be from some additive, or just a poor quality/old seal to begin with.

As for the sensor, I won't comment, as I don't know...

When I bought the car I was told that there was mobil 1 synethetic in the engine. I would get the occasional drip but thats nothing compared to the drips I get from leaving the car overnight.

To my knowledge all the gaskets are the originals with 108k on them.

My sensor only acts up like this in the cold months, during warmer months it doesn't give me false readings.

Back to the other post. The fact that agp states not to use rp, kinda tells me that something with that oil is wearing that turbo seal out more than other oils. That kinda alarmed me and brought me into this thinking.

I have to go to work now, but later I will do some more research about the effects of the oil.

Thanks

darthroush · Post by **darthroush** » Sat Dec 19, 2009 5:47 pm

I have been using RP for years, and have never had any problems caused by it. OD has pretty much summed up the seal thing. Synthetic oil also cleans better than dino oil, so it can remove some gunk that may be keeping a leak from happening.

Perfctsouljah · Post by **Perfctsouljah** » Mon Dec 21, 2009 9:42 pm

Royal Purple is a great oil to use for any motor that is new and has just been broken in, or for one that has been run with synthetic for it's life. Even at 100k miles, most of your seals are far into the process of breaking down. We are talking about rubber-like components that are exposed to extreme temperatures through-out the years. When rubber becomes heated and cooled quickly it will expand and then contract. This is why automotive companies use rubber, but over time these temperatures cause the material to crack and degrade (Much like a set of tires).

After 100k miles your car is going to leak, and eventually it will begin to leak a lot. Dont stop using synthetic because if you go back to petro based oil it will removed the layer of protect "gunk" that the synthetic left and will cause your car to leak even more. Think about replacing the seals that you know are leaking. This car isn't that hard to work on, just follow instructions.

Hope this helps
-Matt

darthroush · Post by **darthroush** » Tue Dec 22, 2009 10:19 pm

I switched to synthetic at 70 or 80,000 something miles. It depends on the engine too. How well it has been taken care of. I didn't expect any problems, and haven't had any. Was there the possibility? Oh yeah.

Perfctsouljah · Post by **Perfctsouljah** » Fri Dec 25, 2009 9:21 pm

darthroush wrote:I switched to synthetic at 70 or 80,000 something miles. It depends on the engine too. How well it has been taken care of. I didn't expect any problems, and haven't had any. Was there the possibility? Oh yeah.

You are absolutely correct. I switched mine over at 50k and it has done well since. Now at 140k it is just starting to leak. Not bad, but enough to cover the bottom of the oil pan with enough oil to collect some dirt. Other than that everything is fine.

For everyone, Most of these seals are fairly easy to replace. Make sure to use proper torque then road test the car and double check your torque and check for leaks afterwards.