Soooo....... I finally got around to doing Some of my 60k service today because it was so nice out. In about 3 hours(mostly breaks) I was able to change my oil/filter and 6MT fluid. The tranny fluid looked good but the oil was a different story. When I drained the Oil and put in the new 5 quarts of Amsoil I decided to dump the old oil in the new containers to measure how much oil was left over. I was shocked that there was only 3 and a quarter quarts left! I had been running Roayl Purple 5W30 for about 6k- and They claimed you can run it up to 10k. I couldn't inspect the oil for metal shavings because my catch pan isn't an open top style. I'm almost terrified at the thought of how much damaged I couldve caused. Has anyone else experienced this?!

 

Your engine is fine Royal Purple is not "crappy" oil so you should be ok. Never listen to any company that says you can run there oil for any longer then the factory change interval without doing a UOA to find out how long can you actually use it for.

Check this link
https://g35driver.com/forums/tsb-tec...ption-tsb.html

You need to go to your dealer for an OC test.

 

I have heard that cars using RP tend to be consumed at a slightly higher amount than typical oils. I do not know how accurate this is.

There are some that will argue a moly-based lube should not be run in a street driven type of vehicle due to long-term damage. RP is one of the only oils using Molybdnum disulfide which is formed from a solid metal. Moly is a refractory metal capable of withstanding high heat, and in powder form is a great lubricant. That's basically what your oil is...this is liquid form



I'm not a petroleum engineer so I am not going to say to not use it here. Plenty of people use it fine. So don't jump down my neck if your friend Jim-Bob has put RP in his car for 250K miles without issue. Good for them. I don't work in the industry so I haven't tested it so i am nowhere qualified to say it's no good to use. I work with moly in a solid state a lot and it's very gummy, but slick. I have a bar of it on my desk right now and it's almost like a greasy piece of lead (expensive too..that's why the oil costs so much). I personally would not use it in my own street car. I'd run Amsoil/Mobil 1/Castrol first. Most people i know using it use it in specialty race drag cars, where the motor is torn down every 5K miles and new bearings and rings and such are installed.

But 2.5 quarts in 6K miles may not make the cut on an OC test. I routinely do my own OC test on my 5AT car and find i consume about 1.25 quarts per 3500 miles. However, it's consistent, and according to the chart on the OC TSB, would not get me a new engine and is considered "normal"...however it's excessive for any car i've ever owned.

Since i change my oil so frequently, it's the main reason I don't run synthetic. I drain and measure my oil every 3000-3500 miles.

Since he's at 60K, he may not be under warranty any more.

 

You have a "Rev Up" motor. They are known to have oil consumption issues. (mine hasn't yet) I would check your oil DAILY for the next month until you figure out if it's using or not. Hopefully, you are still under warranty.

Search here, there are several threads dealing with this.

 

he just said he hadn't changed it for 6k+. Our cars shouldnt go past 3500 without an oil change obviously. They burn oil, more then most. Not a complicated problem, solution is change your oil every 4500 miles at the very least even if you're gonna run expensive stuff.

 

I use RP, its been great.

Don't ever think that you don't have to check your oil.

Do it regularly and make sure it stays full.

 

I have been using RP for bout 40k miles now and i have now issues. I use in my other car as well and my sis uses in in her lexus.

 

The oil filter paper elements soak up a little oil too - some of them can hold almost a quart - leave it upside down for a couple hours and you'll probably find 1/2 qt drained out of it.

 

^ oh damn I just did the calculation since I thought half a qt was too much, and its actually 0.39 qt :P I thought it was going to be less then that.

 

Many posters touched but just to state in in plain English -

Yes a synthetic oil like RP or S50 can last 6000 mi physically but it's lifetime has nothing to do with consumption which in our cars means you going to need to add a 3/4 quart +/- every 3000 miles.

 

close enough for government work!

 

using RP for almost 15k, no issues.

 

Use RP depending how my funds are but even when I use Synthetic Oil I change it every 3000 no matter what ! Some may say it a waste up whatever . I always put 5 1/2 quarts to compensate for the oil filter . I also have a Rev-up motor but it's been replaced and the new motor doesn't burn a drop and I drive my G like I stole it most of the time .

 

I have a non-revup (03) with 117k.

Mine will consume about 1-1.5 Qt over 3000-4000 between oil changes. Kinda depends on how hard I beat on it.

Not really a big deal though. Rev-ups with the OC problem are more like 1 qt every 1000 mi.

 

ya well i bought my car and was worried about it (06 mt sedan) but the previous owner apparently took it in multiple times for a consumption test and it passed per infinities records so i guess I'm safe