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Author Topic:   Purple Oil
J3
Dirt Maniac

Total posts: 188
posted June 30, 2005 11:51 AM  
Is Royal Purple oil any better than any other synthetic oil? Is it worth paying the extra money for it? Just want to see everyone else's opinion.

sdhnc29
Dirt Forum Champ
Total posts: 934
posted June 30, 2005 04:48 PM  
Yes it is!
Steve

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Hendren Racing Engines
Rutherfordton , NC
(828)286-0780
www.hendrensracingengines.com
www.experienceodessa.com

hamer36
Dirt Maniac

Total posts: 196
posted June 30, 2005 08:10 PM  
Which is better of these synthetics?: Mobile 1, Purple , Castrol

BrianW
Dirt Freak

Total posts: 385
posted June 30, 2005 10:14 PM  
If you're talking about racing - the dedicated race oils are the best - I've run the Royal purple "racing 11" lightweight oil. The others that you mentioned are a good oil, but not a racing oil - much better than standard dino oil though. If you're trying to compare race oils then compare Royal Purple, Red Line oil, and I think amsoil makes a racing oil. In that case the RedLine and RP are both great oils - to me it would come down to what's available in the area and the cost...

streetstock82
Dirt Forum Racer

Total posts: 81
posted June 30, 2005 10:44 PM  
ive got over 8 nights on the royal purple in my
hobby stock and it still is as good as when i put it in. its worth the cash because it saves you money in the long run in more ways than one.

Kromulous
Dirt Forum Champ
Total posts: 796
posted July 01, 2005 06:51 AM  
Anybody ever heard of an oil called Caepeco or something like that?

I seen some sprint car guys running it and just wondered if it was worth a hoot. Comes in a vanilla or a bland yellow gallon jug, and has red letters.

Krom.

sc1 racing
Dirt Freak

Total posts: 419
posted July 01, 2005 12:52 PM  
if if not mistaking the oil you are talking about is designed specially for running alcohol. beleive its almost 10.00 a quart

eenfield
Dirt Maniac

Total posts: 116
posted July 01, 2005 07:18 PM  
quote:
Originally posted by Kromulous:
[B]Anybody ever heard of an oil called Caepeco or something like that?


Do you mean Cen-Pe-Co like what the tractor pullers use?

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted July 01, 2005 08:18 PM  
We have run both RP and Mobil1 and gotten along great. My choice would be one of those 2. If its alky then the RP, if its gas either one. The royal purple is actually designed as a racing oil so might be a little better but after discussion with steve hendren before, he said they see very good results with Mobil1 in gas engines and its about half the cost. Last I knew they were recomending RP in alky engines adn Mobil1 in gas.

J3
Dirt Maniac

Total posts: 188
posted July 02, 2005 01:27 PM  
Hey guys, found this web site about oil. Check it out, it is very informative. You can learn more about oil than you ever wanted too. It also has the spec sheets on almost any type of oil you want to look at.
Let me know what yall think.
http://www.trustmymechanic.com/motoroil.html

J3
Dirt Maniac

Total posts: 188
posted July 10, 2005 08:45 PM  

Just thought I would let everyone know how my first night went after changing oil and putting Royal Purple in. Only change to car was changing the oil. Motor Blew on 6th lap of heat race. I don't think I like Royal Purple oil.

stockcar5
Dirt Forum Champ
Total posts: 578
posted July 12, 2005 11:12 AM  
i dont think it was the oil that blew your motor. sounds more like a builder error, falied part scenario to me.

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www.sathoffracing.com

Kromulous
Dirt Forum Champ
Total posts: 796
posted July 12, 2005 03:42 PM  
quote:
Originally posted by eenfield:
Do you mean Cen-Pe-Co like what the tractor pullers use?

Yep thats it.

Anyone ever use it, tried it?


speedwrench
Dirt Roller

Total posts: 16
posted July 14, 2005 05:57 AM  
Run the synthetic oil it has saved a bunch of motors for me . I have seen 280 temp and have not seized and engine ran two laps that way and sat for an hour in tech no smoke and the bearings looked like new,did have to change oil seal allround kind of cooked them. the synthetic helps pull the heat from the pistons really well

rickbraley
Dirt Full Roller

Total posts: 58
posted July 14, 2005 09:11 AM  
On the synthetic oils, what intervals do you recommend they be changed at and what weight do you recommend using? This is for a SBC, running on methonal, modified on dirt...

J3, I downloaded the information you referred us to and you are right it is very informative.

The info points out the need for adequate filtration of both air and oil. I have been running K&N air and Fram HP4 filters. I am not sure how "efficient" either of these are. Anyone have any recommendations on more efficient filters for either air or oil?

J3
Dirt Maniac

Total posts: 188
posted July 14, 2005 04:09 PM  
quote:
Originally posted by stockcar5:
i dont think it was the oil that blew your motor. sounds more like a builder error, falied part scenario to me.


Well, I am going to have to say it was a failed part, not builder error. Me and my dad built her. But we did run half of last season on her and the first half of this season. Not bad I guess. Didn't refreshen her last winter, was thinking cause only had half a season on her she would be good. I guessed wrong.

After pulling her apart and looking at things, it spun the bearings, which caused a rod and piston to come apart.


racerman707
Dirt Freak

Total posts: 374
posted July 15, 2005 06:24 PM  
Most definitly not the oil. After we started using RP in our 4cyls the rod bearings get changed at the end of the season not every 3 or 4 nights! By the way...one motor has 3 years on the first set of bearings and still holds together at 8400 rpm. Love the stuff!!

J3
Dirt Maniac

Total posts: 188
posted July 15, 2005 09:52 PM  
If you check out the post I posted earlier about engine oils it might shed some light on stuff for ya. I am not saying that RP is bad, it is good oil. However, it is no better than any other good quality synthetic oil. Actually, it is not as good as alot of them. (According to the stats)


J3
Dirt Maniac

Total posts: 188
posted July 17, 2005 10:29 AM  
Ok guys listen to this. I know you say that the oil wasn't why my motor blew last week. Well now I think it is. My motor didn't even have a whole season of racing on it yet. It ran purfectly fine while I was using Mobile 1. I changed and put the royal purple in and motor blew on first night. Not looking real good for the oil. Now, my dad also has a car almost identical to mine. His motor only had (notice I said HAD) 8 races on it. Motor was great, ran great, sounded great. Last week when I changed my oil I also changed his to royal purple as well. His car ran fine last weekend with the purple, but it blew last night. Now, that is 2 motors that have blown within 30 laps after putting royal purple oil in it. Their was nothing wrong with either one of them before the oil, and the oil was the only differance that was made, and then they blew. You will not be able to convince me that the oil was not the problem. I will never use any Royal Purple products again.

If you look at the oil specs page that I posted earlier on this post, you will see that it didn't score very well. I emailed royal purple and asked them for all the specs on thier oil. (VI, TBN, 4 Ball, Noack and a few others) They emailed me back and said I had no use for that information and that it didn't matter anyway because their oil is far superior to other oils. I don't know about you, but I wouldn't use a oil that refuses to give me the specs on the oil and just take their word that it is better. Sounds fishy to me. Just food for thought.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted July 17, 2005 08:17 PM  
What oil was it, I mean was it the racing oil 21, 41, 51 etc? They wont give you specs on the racing stuff because it is a propreitary blend and they dont want others trying to copy it, Ask for for the specs ont eh street oil and you'll prob get them or I think you can get them on the website.

Like the others said I cant imagine the oil was the problem, UNLESS you were running a very light weight oil without an oil coolerand/or excessive bearing clearances. Either one of those could have lead to bearing troubles because the oil film wasnt able to supprt the load.

We ran mobil1 for a couple years then swithced to Royal Purple 41 in our mod for a couple years and got along great, tried something different this year and thinking about going back to RP. Its pretty hard to beat except for the price.


ford5
Dirt Forum Champ
Total posts: 711
posted July 21, 2005 06:46 AM  
The specs are at their web site...no need to email them for it. Just go to their web site and you can see the specs.

quote:
Originally posted by J3:
Ok guys listen to this. I know you say that the oil wasn't why my motor blew last week. Well now I think it is. My motor didn't even have a whole season of racing on it yet. It ran purfectly fine while I was using Mobile 1. I changed and put the royal purple in and motor blew on first night. Not looking real good for the oil. Now, my dad also has a car almost identical to mine. His motor only had (notice I said HAD) 8 races on it. Motor was great, ran great, sounded great. Last week when I changed my oil I also changed his to royal purple as well. His car ran fine last weekend with the purple, but it blew last night. Now, that is 2 motors that have blown within 30 laps after putting royal purple oil in it. Their was nothing wrong with either one of them before the oil, and the oil was the only differance that was made, and then they blew. You will not be able to convince me that the oil was not the problem. I will never use any Royal Purple products again.

If you look at the oil specs page that I posted earlier on this post, you will see that it didn't score very well. I emailed royal purple and asked them for all the specs on thier oil. (VI, TBN, 4 Ball, Noack and a few others) They emailed me back and said I had no use for that information and that it didn't matter anyway because their oil is far superior to other oils. I don't know about you, but I wouldn't use a oil that refuses to give me the specs on the oil and just take their word that it is better. Sounds fishy to me. Just food for thought.



KPLugnut
Dirt Forum Champ
Total posts: 1019
posted July 21, 2005 07:42 AM  
One other thing many of you may be overlooking here is an incompatibility between Mobil1 and many other types of oils. If you ran a motor on Mobil1 synthetic, and drain it, some of that Mobil1 still remains in the oil, clinging to the metal. That "leftover" oil has been confirmed to turn to a jelly-like "goo" when you put in another brand of oil that is not compatible with Mobil1.
We've seen that many times in kart motors, 4cyl engines, and to a lesser extent, even big motors.
It's not something Mobil will ever admit to either.
More often than not, a pressurized oiling system (as opposed to splash type in kart motors, for example) will flush out that gel, but occasionally, some will lodge in a passage and starve a bearing (or 2 or 3)...

Food for thought, anyway....

KP

James Ott
Dirt Maniac

Total posts: 131
posted August 15, 2005 07:55 PM  
KP is right on the money... been building kart motors for years, seen all the magic oils. Seen the cheese in the motors from mixing oils too. We Always ran Amsoil products and NEVER blew a motor. If it will keep a splash oiled motor running at double mfg. recommended rpm it will do fine in your motor.

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"Winning heals all wounds"

cresswellracing
Dirt Roller

Total posts: 14
posted August 18, 2005 09:09 PM  
KP- never heard from ya, I sent you an email on 2bbl Rochester carbs a week or so ago... Anyway, running karts for over 8 years now, I have seen all kinds of "Magic oils" too. I have learned the hard way, some oils donít play well with each others. Burnt up 2 motors in one night just by switching oils. Both motors had 1 race on them, nothing wrong with them, switched oil. Blew one and burnt one. Upon tear down, we found some kind of goo laying in the bottom of the crankcase- obviously from the incompatibly oils. We came to find out later that the company released a warning saying that "oops" this wasnít compatible with the current popular racing oils (Lightning light).

sideways
Dirt Forum Champ
Total posts: 715
posted August 19, 2005 03:17 PM  
Been there done that on the kart engine also.Switched oils and burnt one up took the other apart looked like sand paper went thru it.Went back to old oil all was good for several years.

cresswellracing
Dirt Roller

Total posts: 14
posted August 21, 2005 08:40 PM  
we have had excellent luck with Thor brand oil. for a few years now... It is slightly less expensive than the rest of them and shows identical dyno results. Only comes in gallons. If thor isnt available, cool power is my second choice for karts.

rico 08
Dirt Forum Champ
Total posts: 1139
posted August 22, 2005 04:00 PM  
Well if they don't reccomend breaking in an engine on synthetic oil..how do you switch over to it?

J3
Dirt Maniac

Total posts: 188
posted August 23, 2005 07:20 AM  
Break her in first with conventional oil, then change oil and put in synthetic.

lee browning
Dirt Roller

Total posts: 19
posted August 24, 2005 10:15 PM  
The 1a latemodel up in Canada has a sponsorship by royal purple, great stuff will never go back. He has had many sponsorships by oil companies and royal purple is the only lubricants we use anywere on his car.

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