Royal Purple oil and filter

[Dib52]

A little background... I purchased my Expy new in 2007 and at the 3000 mile mark I performed the first oil change and switched over to full synthetic motor oil from the factory blend. I have done habitual changes since using Mobil 1 or Quaker State and a Fram XG(gold housing) in the intervals of about 6000 mi. I'm getting ready for the next change with almost 50000 on the ticker and am considering going with the Royal Purple products. At 50k I thought it might be time for a little extra insurance. So, my question to all, are the Royal Purple products really worth the added cost? Anyone with some real world knowledge care to share their experiences? As I see it, the RP oil change will run me about $75 up from the normal $45. Is the extra $30 expense justifiable? Thoughts?

 

[superexpy]

I tried RP in my car and my truck and my truck liked it and my car did not so I did some resurch on it and I ended up draining it from both cars a week later.

 

[trdragons44]

Friend had two motors blow up on him using royal purple. I WOULD stay away from it and the pos fram filters.. I personally use Mobil1 full synthetic and a motorcraft filter. I would also stay closer to 4,000 on oil changes, 6,000 is way too far for my comfort.

 

[GAINMOB]

i met a guy that ******* from talking about RP...claims its the best stuff on the market and gives you 1-2 mpg's...slight increase in torque and hp...nothing alarming but just a noticeable enough that you can feel a difference...said it took 2-3 changes with RP to be like this...main thing he notice is the engine was smooth...

 

[DF5.4]

I've been using RP in mine since I got it. Usually I will use the NAPA gold filter. It's a Wix filter with a NAPA sticker on it. Lately I've been watching the different parts places and they will have a sale on RP oil and filter. It runs smooth and I haven't had any problems with it.

 

[ZombieSoldier]

Nope not at all. Mobil1 will give you better protection and be cheaper. Do your engine right, don't use RP. Do a google search on actual lab findings about good ol' Royal Purple.

 

[Dib52]

Ok, I've done some reading, there seems to be no middle of the road with RP. People either love it or hate it. Maybe it just some smoke and mirrors and fancy marketing. Now I'm wondering about possibly switching to Amsoil, almost everything about that stuff is great! Only about $2/qt more than Mobil 1. Regardless of oil choice, I'm gonna start using the Mobil or K&N Filters.

 

[ZombieSoldier]

I only use ford filters... I don't trust fram or any others.

 

[panda24619]

i use fram, my dads 04 tundra uses fram, our old 79 jeep uses fram my moms 08 4 runner uses fram. there is nothing wrong with them. ive used the "cheap" one, the "tough" ones and the high mileage ones. every time i change them there is nothing wrong with my oil. ive used a wix before and guess what? nothing changed. now a days filters are pretty much the same thing with slight differences here and there.

i would also stay from RP. had a buddy use it in his F150. it ran hotter and he lost mileage. i use catrol gtx high mileage, but all the other vehicles and other toys, ie lawn mower, 3 wheeler, get the basic gtx.

 

[ZombieSoldier]

Again it's personal preferences. I prefere motor craft, even on my Powerstroke. With oil I do mobil1 and for my Powerstroke I use Rotella

 

[snellemin]

Been using RP for a while now in Exp and two other rides. Also use in my Rc toys. I prefer it over the Mobile one, which I was a fan off for a very long time. I switched over once I saw what the RP did on the dyno in my friends dragsters. Its a love or hate it kinda thing with RP. I saw a big difference with the Expy of mine once I swapped over the tranny and motor oil to RP. I get better mpg on the highway and passing power is alot better. Now before anybody starts saying anything, I will say that it took me a 1000 mile road trip to start seeing a difference in performance after I swapped over to RP. I love the once a year oil changes with the RP. I use K&N oil filters, that I change over every 7000 miles. In my other two rides I just use RP in the tranny and differential. I did not see any improvements when using it my low hp little 4 bangers, but I do like the longer oil change intervals.

 

[dougmcp]

I don't think RP is any better than any other synthetic oil and changing synthetics with anything less than 10K-15K miles is a waste of money and resources.
Regardless of what people say, IMO motors don't blow up from using any brand, synthetic, blended or dino oil.

 

[masterhacker]

i use fram, my dads 04 tundra uses fram, our old 79 jeep uses fram my moms 08 4 runner uses fram. there is nothing wrong with them. ive used the "cheap" one, the "tough" ones and the high mileage ones. every time i change them there is nothing wrong with my oil. ive used a wix before and guess what? nothing changed. now a days filters are pretty much the same thing with slight differences here and there.

i would also stay from RP. had a buddy use it in his F150. it ran hotter and he lost mileage. i use catrol gtx high mileage, but all the other vehicles and other toys, ie lawn mower, 3 wheeler, get the basic gtx.

Cut open a royal purple, K&N or any other premium filter them compare it to a fram, There is a big difference. im not saying there is anything wrong with em But if you needed a kidney would you want one that does a better job of filtering waste than one that doesn't?


also how is motor oil going to cause a noticeable difference in engine temperature unless he used the wrong stuff?

And finally i say its stupid to put 10-15K on any oiil be it synthetic or not, You will end up with carbon deposits. I had a 89 fire bird that someone was doing that on and it had like 1.5" of carbon buildup on the heads.
I don't care what kind of oil it is that's just not a good idea. You'll have 15,000 miles worth of microscopic metal shaving floating around your engine. I use synthetic oil and I change it like every 4,000 miles, Vs 3,000 miles with regular oil And Ive never had any engine problems on any vehicle Ive ever owned

 

[2000eb]

i only use toyota oil filters on my corolla. panda seriously tell your parents to use toyota oil filters thats about the only thing that really matters with toyota dealerships. if they take their vehicle in for something and they see it doesnt have a toyota oil filter then there goes any warranty thay have. toyota oil filters are actually cheap and if you compare them to other oild filters they stand out. the k&n oil filter and one or two others are the only ones that compare. toyota has those one way valves or whatever basically they make it so you dont have dry starts i cant remember what the stuff is called now. but that is toyotas like only reason for not warrantying work on the engine and what not. im serious its actually in their "fine print" i think i did pay like 7 or 8 bucks the last filter i bought so they have gone up but right after i bought my car they where only like 2 bucks for the longest time which made them actually cheaper then anybody else. there is a difference in quality of oil filters

i use fram, my dads 04 tundra uses fram, our old 79 jeep uses fram my moms 08 4 runner uses fram. there is nothing wrong with them. ive used the "cheap" one, the "tough" ones and the high mileage ones. every time i change them there is nothing wrong with my oil. ive used a wix before and guess what? nothing changed. now a days filters are pretty much the same thing with slight differences here and there.

i would also stay from RP. had a buddy use it in his F150. it ran hotter and he lost mileage. i use catrol gtx high mileage, but all the other vehicles and other toys, ie lawn mower, 3 wheeler, get the basic gtx.

 

[dougmcp]

And finally i say its stupid to put 10-15K on any oiil be it synthetic or not, You will end up with carbon deposits. I had a 89 fire bird that someone was doing that on and it had like 1.5" of carbon buildup on the heads.
I don't care what kind of oil it is that's just not a good idea. You'll have 15,000 miles worth of microscopic metal shaving floating around your engine. I use synthetic oil and I change it like every 4,000 miles, Vs 3,000 miles with regular oil And Ive never had any engine problems on any vehicle Ive ever owned

Engine temperatures are nominally reduced with synthetic oils because of it's lubricity but I would doubt you could see it on an engine temp reading.

Oil is oil, somewhat, it's the additives that keeps the carbon build-up at bay.
Synthetics are more complicated but still similar, it's the additive's job to keep an engine clean. Synthetic oil specifically will not oxidize like petroleum oils, these oils contain no petroleum to form hard carbon deposits.
The thermal breakdown of oil can dirty up the inside of an engine pretty good but synthetics have a higher thermal breakdown point so they work better at keeping the engine cleaner than the dino oils.

Since 2007 Ford has recommended changing oil at 7500 miles, Honda 10K, GM and BMW have quit recommending a mileage and uses sensors which can easily exceed 12000 miles before the oil change light appears. BMWs can go as many as 30K before oil changes.
Carbon deposits are caused by poor combustion not extended oil changes.
I stand by my original statement and suggest that 10K-15K is fine for synthetics and anyone changing their oil more often is not hurting anything, just wasting money.

 

[2000eb]

still the number one most people forget. synthetic motor oil does last longer yes it really does but your oil filter doesnt. most oil filter companys recommend 3000-5000 mile change regardless of oil type. synthetics dont break down as as quick as regular oil. so you should still change your filter atleast every 5000 miles if your gonna run 10+k miles on your oil. another thing is think about motor oil. they have said 3000 for years. even though advances in motor oil have been amazing thats why vehicle manufacturers are now saying 5k+ interval oil changes. even regular oil holds up loads better then it used to.

as for amsoil independent companies give it good reviews and diesel mags have done several of their own tests which back up those reviews. amsoil was the first in the synthetic market place so ya if i had the money i would use it. amsoil as a company does an amazing job in all of their lubricants. oil transmission fluid gear oil etc. my old boss has a lifted dodge he has used rp throughout drivetrain and didnt notice a difference at all. he used amsoil and swears by it. but him and the diesel mags bith say you gotta change all of the fluids to notice a difference engine tranny and rearend.

castrol gtx has awesome cleaning properties. i run castrol gtx high milage in truck with normally motorcraft filter and mobile 1 full synthetic with toyota oil filter in my car. i keep meaning to see if toyota has a filter that will fit the expy since it is rated there right next to the premium filters but just without the price. toyota doesnt rip you off like other car manufacturers for parts etc. even my cabin air filter is cheaper then autozone etc form toyota. even for like the pontiac vibe which uses toyota engine etc gm makes their own stuff for it but its cheaper to go buy all the parts from the toyota dealership, which i find very amusing

 

[panda24619]

what warrenty? my moms 4runner just ran out and my dads tundra is an 04 we picked up at a government auction. so that never had one. and besides its a toyota. very unlikely something will happen. and if something does go wrong o well. well just pay the price to get it fixed or well try to fix it first.

also i do agree with the K&N oil filters. my friends dad is the owner of Barnes dry sump oil systems. http://www.barnessystems.com/ and thats all they use. my friend was telling me they got an extra 1-2 hp depending on which engine they were testing it on.

 

[Dib52]

Amsoil and K&N it will be...

 

[BakerEdition]

oil change

I change mine at 3k or sooner....most of the time its sooner....I use a name brand synthetic 5W30 and either a K&N or a Napa Gold oil filter which is made by Wix. the oil I take out you could put in a hoopdie and drive for another 3k its so clean....I would rather spend 40.00 bucks than 4,000.00 on a engine.

 

[panda24619]

see $40 isnt much. but it is when you have 2 other trucks to do and sometimes 3 if were driving the jeep around. so your talking 120-160 just in oil change.