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#728552 - 02/06/06 01:04 AM Royal Purple motor oil
crimsontide Offline


Registered: 12/15/03
Posts: 284
Loc: Charlotte, NC
what kind of extended OCI's can be expected from this oil???

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#728553 - 02/06/06 01:09 AM Re: Royal Purple motor oil
Schmoe Offline


Registered: 05/12/03
Posts: 6371
Loc: Oklahoma
Depends on what engine your talking about. Different engines have different OCI's. But in general, I wouldn't take it past anything you'd feel comfortable taking M1 to.

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#728554 - 02/06/06 02:51 AM Re: Royal Purple motor oil
jonny-b Offline


Registered: 01/06/06
Posts: 1071
Loc: Norway
I have a 1.7cdi(turbodiesel) and 125 horsepover. I am running their 5/30 oil for 18000miles(30000km). It works great. I have been using Castrol syntec, but it only gave me 14000miles. It has a oil-life monitor that meassure the particles in the oil. The Mercedes-people don't understand why this car is going so long on the same oil, because other people with the same car and engine rarely do more than 12000miles. Could of course be because of this additive that I have been using: www.xado-us.com Bought the car new in November the 14, 2003. It now has 77000miles on(125000km). My other car uses the same oil and the same additive. I drive it hard, but the engine seem to be better than new, and does not use oil between changes. It now has 205700miles on, or 331000km.

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#728555 - 02/21/06 07:37 PM Re: Royal Purple motor oil
GROUCHO MARX Offline


Registered: 07/24/02
Posts: 11410
Loc: The Sandhills of NewYorkistan
See if you can find UOAs for long OCIs on this oil.

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#728556 - 02/23/06 06:13 AM Re: Royal Purple motor oil
gr8gatzby Offline


Registered: 11/22/05
Posts: 585
Loc: Charlotte, NC
anyone's thoughts on xado?

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#728557 - 02/23/06 11:45 AM Re: Royal Purple motor oil
Schism Offline


Registered: 05/03/05
Posts: 258
Loc: Ft. Morgan, CO
Testemonials on this page.
http://www.autobahnpower.com/products.asp?recnumber=451

I like the pic of parts that had 400 drag runs on them.

Sorry for the offtopic.

[ February 24, 2006, 04:01 AM: Message edited by: Schism ]

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#728558 - 03/13/06 03:23 AM Re: Royal Purple motor oil
JTH Offline


Registered: 10/23/04
Posts: 10
Loc: oakland co. mi
I've been running the RP15w40 in my duramax for about 60,000 miles and feel it is a very good oil. I know there is alot of postings here that don't like it but all my results have been good and the price is right if you find the right supplier.The last case I picked up was cheaper than Mobil 1 suv.

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#728559 - 06/02/06 09:28 AM Re: Royal Purple motor oil
Reg# 43897 Offline


Registered: 11/28/04
Posts: 698
Loc: Fredericton
$32.00 / jug at a Peterbilt dealership close by here...

John.

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#728560 - 06/02/06 08:55 AM Re: Royal Purple motor oil
LargeCarMan Offline


Registered: 10/10/05
Posts: 632
Loc: Idaho
A friend of mine has run the Royal Purple 15-40 diesel oil in his 6.0 PSD. His OCI is 15,000. He has never done an analysis, but I have nugged him into letting me do one before he dumps the next batch out of his engine.

He tells me that he uses zero makeup oil between Oci's....wow, very good for a diesel or any engine if you ask me. I am trying to talk him into a bypass filter for extending his OCI's, but if the oil shows good @ 15K why bother. The only advantage is if the Ea type bypass removes soot and that would be an advantage for diesel engines.

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#728561 - 06/03/06 05:43 AM Re: Royal Purple motor oil
another Todd Offline


Registered: 05/15/06
Posts: 1631
Loc: Southern CA
XADO website claims "Even brand new vehicles have been shown to increase gas mileage by 5%". Absolutely impossible. You cannot increase something that has not been established. My 2 cents.

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