Recent Topics
Tranny fluid in Old Ferguson Tractor ?
by Rudy1999 250. 09/20/18 03:39 PM
New (old) car inbound
by BeerCan. 09/20/18 02:42 PM
Ford AWD PTU fluid always black
by Raven. 09/20/18 02:34 PM
PC not charging
by sleepery. 09/20/18 01:53 PM
Can alternators make noise?
by Benzadmiral. 09/20/18 01:21 PM
Pr 1970 Superbirds For sale - Barn Find
by user52165. 09/20/18 12:32 PM
Fram Ultra Air Filters
by StevieC. 09/20/18 12:20 PM
Change oil filter or not. Very low miles
by Martin10. 09/20/18 11:37 AM
Toslink optical audio cable (plastic) experience
by ffhdriver. 09/20/18 11:30 AM
A woman I work with wants an affair with me!
by Drew99GT. 09/20/18 11:08 AM
ACEA A5/B5 REQUIREMENTS
by Kjmack. 09/20/18 10:56 AM
Carolina Reaper hot peppers
by gman2304. 09/20/18 09:54 AM
New Fram air filter?
by irv. 09/20/18 09:15 AM
Any golf cart experts?
by HawkeyeScott. 09/20/18 09:15 AM
EU Subaru 2.5 FB engine oil
by IMPALA08. 09/20/18 08:16 AM
02 Focus head replacement
by Eric Smith. 09/20/18 08:08 AM
A5/B5 or A3/B3
by ka9mnx. 09/20/18 07:53 AM
2018 Mazda 3 2.5 Castrol or Mazda Moly
by mazdamonky. 09/20/18 07:44 AM
What fuel are you running?
by Matagonka. 09/20/18 07:25 AM
Newest Members
FarmerDude, Bman90, Alday714, Joephoto, tlelectric
66021 Registered Users
Who's Online Now
70 registered members (53' Stude, 77GrandPrix, 28oz, 86cutlass307, 2009Edge, 5 invisible), 1,645 guests, and 47 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics290,723
Posts4,849,119
Members66,021
Most Online3,590
Jan 24th, 2017
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Page 1 of 2 1 2
Nissan 5.6 Castrol GTX vs RP HPS 5 30 #4553055
10/24/17 01:14 PM
10/24/17 01:14 PM
Joined: Oct 2017
Posts: 79
VA
thastinger Offline OP
thastinger  Offline OP
Joined: Oct 2017
Posts: 79
VA
This is the Wife's Armada. Right column is the GTX sample and most recent was the HPS sample. GTX run had 4600 miles on it and the HPS run had 8800 on it. What are your suggestions from folks who have more experience looking at these reports? Looks to me like I could run the GTX out to maybe 6K and I could take the HPS to 9K. They called out the AL but it isn't nearly as high as I've seen in UOA of other engine manufacturers. Since the wear metals weren't really higher with the HPS but it was a significantly longer run, it seems I could run that to 9K and be fine...or do you guys recommend a different oil? 7500 miles is the RCI for this motor but I don't see being able to get there with conventional motor oils.
Both runs were with a fram tough guard filter. It has a Mobil 1 filter on it for this run because I found a local place to get them finally.

Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4553662
10/24/17 10:12 PM
10/24/17 10:12 PM
Joined: May 2013
Posts: 1,087
upstate NY
dustyroads Offline
dustyroads  Offline
Joined: May 2013
Posts: 1,087
upstate NY
The first thing that I noticed was the fuel in the GTX report. Was there a problem that you have since fixed...or was it your sampling technique? I think your own assessments are fair, although if you wanted to extend that RP oci, it would have been ok to 10k miles. I'm not going to suggest any particular oils, as that's for you to decide based on your own information and preference.

Other than the fuel dilution on the first one, they look good. The aluminum is higher than the averages, but nothing scary. Maybe temporary or a signature of your engine. Something to keep watch of, but don't lose any sleep over it. The silicon is a little bit high so maybe check things over with the intake plumbing to make sure it's all sealed. Maybe a different air filter brand would help. If 7500 is the recommended oci, then you can say that you got all of that and then some. There are others here that can offer better advice or opinions.

Welcome to BITOG!


2013 F150 XLT 5.0 4X4 101k miles
Edge 5W-30 / Fram 10575
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4553937
10/25/17 09:11 AM
10/25/17 09:11 AM
Joined: Oct 2017
Posts: 79
VA
thastinger Offline OP
thastinger  Offline OP
Joined: Oct 2017
Posts: 79
VA
Thanks for the input. I think I took the GTX sample after a short trip of 4 or so miles but it wasn't a stone cold sample. I think the HPS sample was after the wife got home from work, which is about a 15 mile trip. They called it out but it was way below what they list as acceptable, which I sometimes don't understand why they call some things out, sometimes it seems as if they just need to "say something" on the report.

Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4553947
10/25/17 09:25 AM
10/25/17 09:25 AM
Joined: Apr 2008
Posts: 37,110
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,110
Ontario, Canada
On a PPM per mile basis everything save aluminum is nary identical. Aluminum has essentially halved, but we are looking at such small concentrations that I wouldn't worry about it, it could just be lab error.

Based on TBN, I'd keep it around the 9K mark with this oil to maintain a safety margin.

Your report basically indicates that you can run HPS longer than GTX, that's about it. Nothing else really stands out.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4554107
10/25/17 11:53 AM
10/25/17 11:53 AM
Joined: Feb 2008
Posts: 4,727
Texas
FZ1 Offline
FZ1  Offline
Joined: Feb 2008
Posts: 4,727
Texas
The GTX was about as good as the RP. Why don't you go to your local WM and try some M1 EP or Castrol Edge syn. RP looks overpriced.

Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: FZ1] #4554387
10/25/17 05:34 PM
10/25/17 05:34 PM
Joined: Oct 2017
Posts: 79
VA
thastinger Offline OP
thastinger  Offline OP
Joined: Oct 2017
Posts: 79
VA
Originally Posted By: FZ1
The GTX was about as good as the RP. Why don't you go to your local WM and try some M1 EP or Castrol Edge syn. RP looks overpriced.


Which flavor of M1? At my local WM today there was, speaking in full syn only, the standard grey M1, then there was truck/suv, then there was EP, then there was "yearly service". Which one should I try? I order RP HPS by the 5 gal pale because I use it in my jet skies and drag bikes so it comes to 6.78/qt shipped to my house. I'm certainly open to trying something else in wife's truck that can get me to 10K OCIs safely..although the HPS may have done that based on the TBN.

Last edited by thastinger; 10/25/17 05:39 PM.
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4556841
10/28/17 03:55 AM
10/28/17 03:55 AM
Joined: Jun 2016
Posts: 551
South OZ
KL31 Offline
KL31  Offline
Joined: Jun 2016
Posts: 551
South OZ
The GTX looked low in viscosity, unless you used a 5W20 that time? Might be worth using a 0W40 just to see if that helps keep viscosity at desired levels. People get all funny about using a higher viscosity but the 0W40 are mostly on the thinner side. If your engine beats on the oil a bit, which it seems to do, the 0W40 will turn into a 30 grade and you will be where you want. Might reduce wear metals potentially, worth a shot for sure considering the RP price. Try castrol edge 0W40 if you can get it cheap. M1 is good too. I'd use the cheaper of the two just because of price as they're similar in most respects.


95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4560623
10/31/17 08:09 PM
10/31/17 08:09 PM
Joined: Oct 2014
Posts: 11,832
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,832
Idaho
Castrol or Mobil1 0W-40 oil if you are interested in pushing the oil change intervals.


"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4567039
11/07/17 05:34 PM
11/07/17 05:34 PM
Joined: Oct 2017
Posts: 79
VA
thastinger Offline OP
thastinger  Offline OP
Joined: Oct 2017
Posts: 79
VA
I hadn't even considered a 0-40 but that sounds like a good idea. The motor specs a 5-30 and the RP seemed to hold vis pretty well but I would really like to get to a 10K OCI on this truck with oils I can buy a walmart.

Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4745613
05/02/18 02:41 PM
05/02/18 02:41 PM
Joined: Oct 2008
Posts: 867
MA USA
andrewp1998 Offline
andrewp1998  Offline
Joined: Oct 2008
Posts: 867
MA USA
whhere did you buy it?

Thanks


2001 Honda civic HX vtecE- 5 spd,232k+
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4745614
05/02/18 02:41 PM
05/02/18 02:41 PM
Joined: Oct 2008
Posts: 867
MA USA
andrewp1998 Offline
andrewp1998  Offline
Joined: Oct 2008
Posts: 867
MA USA
whhere did you buy it?

Thanks


2001 Honda civic HX vtecE- 5 spd,232k+
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4745815
05/02/18 06:11 PM
05/02/18 06:11 PM
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Originally Posted By: thastinger
I hadn't even considered a 0-40 but that sounds like a good idea. The motor specs a 5-30 and the RP seemed to hold vis pretty well but I would really like to get to a 10K OCI on this truck with oils I can buy a walmart.

An E6 5w-30 HDEO could probably do it, but I can't say what its availability would be like at Walmart. Our Walmarts are hit and miss with M1 0w-40, let alone anything really different, lately.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4746320
05/03/18 05:24 AM
05/03/18 05:24 AM
Joined: Jul 2012
Posts: 2,308
South Carolina
alarmguy Offline
alarmguy  Offline
Joined: Jul 2012
Posts: 2,308
South Carolina
Ditch the RP and go with the Castrol if your deciding between the two.
The wear numbers are and would be better with the Castrol then the RP at 8800 miles.

Not sure the purpose of extending OCI but if you just change on time with the Castrol your engine will be all the better.


14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: alarmguy] #4830787
08/04/18 07:30 AM
08/04/18 07:30 AM
Joined: Oct 2017
Posts: 79
VA
thastinger Offline OP
thastinger  Offline OP
Joined: Oct 2017
Posts: 79
VA
Originally Posted By: alarmguy
Ditch the RP and go with the Castrol if your deciding between the two.
The wear numbers are and would be better with the Castrol then the RP at 8800 miles.

Not sure the purpose of extending OCI but if you just change on time with the Castrol your engine will be all the better.


What is your logic to say the wear numbers would have been the same if I had ran the GTX to 9K? I don't see this in the report, I think they would have been twice as much since they are similar now and the HPS was ran for twice as many miles.

Re: Nissan 5.6 Castrol GTX vs RP HPS 5 30 [Re: thastinger] #4830797
08/04/18 07:52 AM
08/04/18 07:52 AM
Joined: Jul 2012
Posts: 2,308
South Carolina
alarmguy Offline
alarmguy  Offline
Joined: Jul 2012
Posts: 2,308
South Carolina
The way I see it, the GTX is a superior oil. Id almost bet if you ran the GTX out to 9000 miles you will see all the numbers lower then with what you have with the RP.

Its really all there in the report. Look at the iron in the RP compared to the GTX, now double the mileage on the GTX and only increase the iron by about 50% or so and you will come out with 10 or 11 instead of 13 because when you double mileage on a UOA the metals do not double.
So to answer your question and if you want a true answer, why not run the GTX the same mileage as the RP and I am willing to bet the GTX will look better.

But then again, you can jsut change oil as per the owners manual and your engine will be better off with the GTX for sure.
Also Dustyrods mentioned the fuel, he is right, you need to make sure the oil is full operating temperature for UOAs = burning hot. I suspect you did not withthe GTX as it is not the oils fault it has fuel in it skewing the GTX test results more negative but still the same and better then the RP you are comparing when it comes to IRON.

Last edited by alarmguy; 08/04/18 07:57 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Page 1 of 2 1 2

BOB IS THE OIL GUY® Powered by UBB.threads™