Royal Purple
10-05-2007, 02:11 PM
#1
Thread Starter
Join Date: Aug 2007
Location:
Posts: 41
Royal Purple
So its time for a oil change andI was thinking about going back with royal purple. Right now I have plain jane havoline 10W-40 and I was wondering ifI would see any kind of improvement with the royal purple 10W-40 (performance, longevity, etc.). Also is thecost worth the improvements?
10-05-2007, 02:15 PM
#2
6th Gear Member
Join Date: May 2005
Location: MD/WV
Posts: 5,736
RE: Royal Purple
Isn't RP good for 10k miles? As opposed to regular oils at 3k? For price, it seems like a no brainer since it isnt over 3x more expensive...
Course, I would do less than 10k mile intervals..
Course, I would do less than 10k mile intervals..
10-05-2007, 02:27 PM
#3
2nd Gear Member
Join Date: Aug 2007
Location: L A 32548
Posts: 316
RE: Royal Purple
On a street engine?? No, sadly the benefits of reduced friction, wont recoup the expenditure. Especially on an older loose tollerance engine that allows more pollutiants into the oil, vs a tight tollerance more modern engine. Its the acids & other pollutiants that break down an oils life span in a street engine. Royal Purple Oil is more for racing engines where ever little bit is needed. A synthetic blend oilwill be more suitable, for a street engine, if Ya just gotta.
10-05-2007, 04:48 PM
#5
2nd Gear Member
Join Date: Aug 2007
Location: L A 32548
Posts: 316
RE: Royal Purple
In my opinion, not really. There are a lot of variables.
If you have a new fresh engine built to tight tollerances(modern CNC type machining, on production engines has this) and you plan to maximize the extended 8-10k mile fluid change programs, Synthetics are great.
On an engine built 25 years ago, & your fluid change schedual is 3k miles, why throw away money??
Some folks choose to do so, as is their right. I would feel wasteful,doing thatmyself.
If you have a new fresh engine built to tight tollerances(modern CNC type machining, on production engines has this) and you plan to maximize the extended 8-10k mile fluid change programs, Synthetics are great.
On an engine built 25 years ago, & your fluid change schedual is 3k miles, why throw away money??
Some folks choose to do so, as is their right. I would feel wasteful,doing thatmyself.
10-05-2007, 07:12 PM
#7
5th Gear Member
Join Date: Sep 2005
Location: Wasilla, Alaska
Posts: 2,505
RE: Royal Purple
At Schucks Royal Purple is a little over $5 a quart. Good deal. A good synthetic oil is $4-$6. Classic is right about synthetic oils but if you can get a good deal than why not?
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10-06-2007, 11:04 AM
#8
5th Gear Member
Join Date: Jun 2006
Location:
Posts: 4,089
RE: Royal Purple
Synthetics offer a lot of benefits over conventional oils. The number one is the reduced wear and tear on the internals. You'll also gain power and efficiency, but as mentioned, you're not likely to notice without a lot of instrumentation. I've seen people gain 1-2mpg with a synthetic oil change, but that isn't necessarily a norm (that was on an '91 Explorer with 160k miles on it).
When used per the oil manufacturer's direction, synthetic oils are much less expensive than conventionals. Amsoil with its 25k/1yr change interval is probably the least expensive, though still very high quality.
When used per the oil manufacturer's direction, synthetic oils are much less expensive than conventionals. Amsoil with its 25k/1yr change interval is probably the least expensive, though still very high quality.
10-06-2007, 12:09 PM
#10
5th Gear Member
Join Date: Sep 2005
Location: Wasilla, Alaska
Posts: 2,505
RE: Royal Purple
[align=left][sm=icon_rofl.gif]I've been there
ORIGINAL: 69stang390
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I have a 69 coupe/390 big block which burns about a quart of oil every two weeks. Who needs an oil change.
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I have a 69 coupe/390 big block which burns about a quart of oil every two weeks. Who needs an oil change.