If I recall correctly, the non-racing version of Royal purple is not a full synthetic but actually a synthetic blend. I used it a few times myself in another vehicle and didn't notice a major difference in gas mileage between it and Mobil 1. It wasn't worth the cost delta at the time between it and Mobil when Mobil spec'd better than or equal to it in all areas. They may have changed in the last year or so but I'm not aware of it....

 

yeah and jeff and bill arn't flaming yet

 

you're wrong about the fact that thin oil does not protect your engine efficiently.

do you want me to spell it out for you?
how it "LOOKS" and consistency has nothing to do with how the oil protects.

if you're a decent "mechanic" or something who work on cars..you would know that you should change the oil when it's WARM..not cold.

look at bill's oil sample results. many samples of mobil 1 came up as protecting well and it had more life in it. you on the other hand decided to change your oil and didn't like how it looks and then came to the conclusion that mobil 1 is a bad oil...what light are you trying to shed on here? that you change your own oil? that you want to try a different oil but want to justify to everyone why u switched?

i'm not flaming anyone..but your statements are false and you fail to back it up with any "real" facts. discussions are being made..you just fail to see the real facts...but instead you trust your two fingers rubbing together used oil.

 

I'm rather confused as to what to flame.......except that Royal Purple probably shouldn't be used. But I don't have hard data to base my contention on. Plus, I need a guinea pig for that one anyway....


The "color" and "thickness" knee jerk reactions just cause me to do this:




So why bother?

 

why not?

 

i have a 99 gxe with 34k on it i have mobil 1 5-30 and mobil 1 oil filter in it for 4000 miles and i just checked it and it looks kinda black and it was also down 1 quart.I just ordered amsoils for 2 other cars i think im gonna try it in my max next oil change

 

to Danny and Bill: my professional mechanic friends told me that Mobil1 gets to thin over time and doesn't protect the seals well. I related what they were saying, and the oil felt more like water than oil after only 4k miles. Perhaps I am as stupid as you apparently think I am for trying a new oil. Yes, that's it, I am stupid and don't know anything, and so are the mechanics I talk to. However, I feel that the car is sounding better now after the switch. I am going to use AMSOIL next, and probably stick with that.

This thread should be locked. I am tired of your patronizing comments.

 

Your initial post did not make this contention clear. You are judged here by the words you choose to use. I still don't know how a 5W/30 oil gets "too thin" and how that is quantatively measured without lab analysis for a viscosity reading.



Please find the post where I called you stupid.

If you are interested in what I actually stated, go back and re-read. If you are too lazy or unwilling to do that, then here is a synopsis:

I think your mechanic is wrong.

I think Royal Purple oil isn't the best oil for the Maxima. This is based on research on the web I did a couple of years ago, so something could definitely warrant a change of opinion.

I would like someone here to run Royal Purple so that we can see for ourselves how it performs compared to other oils.



I'm still clueless as to how someone "feels" a car sounding better. Many here report it, but I've switched from dino to synthetic many times and have noticed zero difference.



I don't understand why you don't stick with one oil (Royal Purple or Amsoil) and leave it at that.

Whether DanNY's comments mirror mine I don't know, but I don't appreciate having words and statements put here that are false. You criticized others for doing the same thing, yet you are doing it yourself?!?

Who the hell is patronizing? Don't bother posting if you don't want opinions. Don't put people's words in their mouths when they didn't use them. READ, instead of knee-jerking to everything stated here.

 

 

Everybody please stop ... or else Bill's face is going to have the keyboard letters permanently printed on his face.

 

My oil looks medium brown right now.....it should be clear. Therefore, I am going to change it.......























































[me being a crybaby]

[/me being a crybaby]

 

what oil doesn't get thin over time? over time tiny bits of gas gets mixed in with the oil. that'll definitely dilute the oil. back to the point...why do u constantly say that thin oil does not protect the engine? like i said before if you think thin oil won't protect then engine then u should run straight 75W-90 oil..that's nice and thick and according to you it'll protect the engine no problem right?

considering mobil 1 is not really marketed as a "extended drain oil" (ie amsoil's 10K deal)...how much longer do you want to run the same oil in there?

i never called u stupid...but if you want to say that you're right and mobil 1 is crap and it doesn't protect then show me some proof and not looking and rubbing it w/ your fingers.

you want this post lock now? u can't handle being wrong and people saying that you're wrong..so lock the thread and run? stay and discuss it...i'm not attacking anyone...if you feel that mobil 1 is bad...show me why it's bad don't fold and run.

 

Way too late

 

Try a synthetic blend before going all the way back to dino

DW

 

Funny, this thread seems to show concerns of oil being to thin, yet not once does anyone suggest 10W30. How come?? It can run in or cars, the manual says so. In fact, a synthetic 10W30 can probably be used in even freezing temps that normally you would have to use 5W30. Synth 5W30 is better in the cold, but not by much, for mobil, 5W30 synth flows at -50 F and 10W30 at -45. Big diference? Even the semi-synth stuff I use is flows at -33 F. Blows away dino 5W30. Of course there are other characteristics, but I feel this is the most important when it comes to cold starts.

So, if there's a concern with 5W30 being to thin, try 10W30.

DW

 

bill: gunna get it tested with Blackstone in 3k miles, ok? I'll give you the specs on it, if that's all right. Then I am going to AMSOIL. I am doing this for experimentation. Perhaps the mechanics thought it would be best for their cars, which run boost? Anyway it will be out in 3k miles and tested for the spec sheets, if that's ok.

dqa: 10w 30 is not recommended for N/A maximas...I wouldn't really switch to a heavier weight unless I were running boost.

 

Locked by request.

 

Great! That will at least give us some idea of what Royal Purple uses in their basestock.