ive been using mobil 1 full synthetic oil since day 1 on my 07. Now it has 46,000 miles on it and the car runs just as good as it did when i first bought it. Im just curious to see if any one has ever used royal purple oil. im intrested to see if it really helps out the engine alot more. feed backs pls

 

So Mobil has been performing excellent so you want to switch?

 

when things are good you just want em to be better! LOL! This happens to me all the time. This thread was too funny to pass up.

 

I use royal purple in my eclipse GSX and it works great. Looks dirty going in and looks dirty coming out. works for me lol. IIRC royal purple is more for a higher performance engines, turbo, supercharged, high hp/tq cars.

BTW dont change to a more expensive oil just to have the cool name. I use mobil1 since day one in my Z also and I ill never change.

 

Good oil. Ive used it b4. Did I notice a difference? no. Now im back to Mobil 1.

 

Has anyone that recommends RP ever read the analysis sticky?

 

No but I did hear that it wasn't that good but it works for me for a+ in my book

 

intresting, so maybe i should just sticvk with mobile 1

 

i tought it would be more expensive but a quart they're only 7$ compared to the mobile 1 that i use witch is 7.40$. and i dont care for the name, i just want the best for the car.

 

Really7 bucks! I buy mine for 8.25. Ill just stick to mobil1

 

Exactly how have you been determining that it actually "works for me" any better/worse than oil costing 1/2 as much.

And for everyone's infomation, you can get Mobil 1 alot cheaper by buying it in 5 qt containers at WalMart. Same for Penzoil Plat, Castrol etc....

 

I've been running Royal Purple. No problems at all. Mobile 1 is good stuff though. If you are happy with it and it's cheaper then don't bother switching.

 

Ummm because I feel the smoothness and I dont have to change my oil that much. I'll run my gsx for 5k miles before changing it. Boost seemed to rise a bit smoother and also just all around better. Oil leeks were a little better to.

 

i remember on horsepower tv they did a test on a engine with the oil, and transmission fluid and the car gained i think 5 hp on a dyno. i thought it was pretty cool. but it was a wile ago. i use what the nissan dealership puts in. Castrol Syntec.. works good for me.

 

i use mobil 1 and a nissan oil filter and drain plug washer. only like 32 dollars.

 

actually, you can see my UOA from royal purple in the sticky. It did very well.

 

https://my350z.com/forum/engine-driv...ysis-info.html

Read this sticky on engine oil analysis before you decide to make your switch.

 

this thread may be of interest to you.

https://my350z.com/forum/engine-driv...ge-my-oil.html

now refer to the post above mine.

 

I've used RP on my car since I got it and I've tracked the crap out of the car from autox to road courses to drag racing and I just hit 60K and did a compression test and it's 179-181 across the board if that helps. Feels like its still running strong.

 

I use their XPR oil in my car per my machinists recommendations - no burn off, works great, zero problems