Royal Purple Syn.
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Royal Purple Syn.
I have been reading a bunch of threads about different types of oil, both synthetic and blends. I am coming up on 7000 mi. and getting ready to make the switch to full synthetic in my 5.4 3v. I am strongly considering giving royal purple 5w-20 a try, but wanted to see what everyone thought before I drop $75 for a case. Thanks in advance, and I love this truck!
Ryan
2004 Black XLT 5.4 SCab
Ryan
2004 Black XLT 5.4 SCab
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From: So. La.
My only experience with Royal Purple is in a hydraulic unit at work. We made the switch to RP due to a hi-heat problem w/ reg. hyd. oil. While the hyd. units ran cooler, the other "problem" was that all of the inside of the hyd. unit was coated in a fine rust. RP doesn't emulsify water so the water, mostly from condensation, rides on the outside of the oil and when the unit is shut down for even a short period of time, well, water does its thing - rust. However, this rust didn't seem to adversly effect the operation.
A couple of the guys at work bought RP oil for their trucks and ran it a while but then switched back to reg. oil, I believe mostly due to price and availability (shipping).
Good Luck!
A couple of the guys at work bought RP oil for their trucks and ran it a while but then switched back to reg. oil, I believe mostly due to price and availability (shipping).
Good Luck!
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$75???!!! Good Lord! People will debate oils and which one to use all day long. Which one is best, etc, etc. All I know for sure is you'll easily get MANY, many miles out of even regular oil when changed as recommeded. There's no way I'm paying $75 for oil...wow. I got rid of a 1990 Chevy Beretta a few years back with 225,000 miles on it and it still ran great. All I ever used was regular oil. I WILL use synthetic or a blend and feel fine with paying $2.08 a quart for it. I just replaced my oil last week with the Motorcraft 5W20 Synthetic Blend and a Motorcraft FL-820S filter. There's no problem at all with paying whatever you want for oil. But really...I can't see paying that much for lubrication. There are way too many approved oils out there that will make your engine last much longer than you'll ever want to keep it. I've never ever had any problems at all related to oil in any car I've owned. Never.
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I'm currently using Royal Purple in my 2004 5.4L. So far I really like it. Unlike many synthetics, it's 100% synthethic (PAO), comes in the correct viscosity (5W-20), and it's API certified. I stay away from Amsoil because it's not an API certified, and they market it like vultures.
I use RP in my outboards, snowmobiles, differentials, transmissions, etc., and have never had a problem.
Oil is like women...Lots of different versions, and men fight over the one they like.
I use RP in my outboards, snowmobiles, differentials, transmissions, etc., and have never had a problem.
Oil is like women...Lots of different versions, and men fight over the one they like.
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From: Hockley, Tx.
Originally Posted by lariatf150
$75???!!! There's no way I'm paying $75 for oil...wow. I WILL use synthetic or a blend and feel fine with paying $2.08 a quart for it. But really...I can't see paying that much for lubrication. There are way too many approved oils out there that will make your engine last much longer than you'll ever want to keep it. I've never ever had any problems at all related to oil in any car I've owned. Never.
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From: Austin, Texas
I have used RP in a Toyota Supra TT in high speed open track events. The oil worked well enough I guess but it seemed to thin out quite a bit compared to other brands of the same viscosity (inc. Mobil 1 and Amsoil). I went back to Mobil 1 and stayed with it in my open track cars.
I assume that the $75/case price is for a 12-bottle case? If so, that's $6.25 per bottle. For a 7-quart change that comes to $43.75 per oil change just for oil. Since I can buy Motorcraft 5w-20 for about $2/quart, the price difference per change is $29.75. Too much IMO.
I tend to agree with what LariatF150 wrote above - if you change the oil and filter regularly, use the recommended-spec oil, you will most likely never have an oil-related failure. Not only that, you will save a fair amount of money at the same time.
I assume that the $75/case price is for a 12-bottle case? If so, that's $6.25 per bottle. For a 7-quart change that comes to $43.75 per oil change just for oil. Since I can buy Motorcraft 5w-20 for about $2/quart, the price difference per change is $29.75. Too much IMO.
I tend to agree with what LariatF150 wrote above - if you change the oil and filter regularly, use the recommended-spec oil, you will most likely never have an oil-related failure. Not only that, you will save a fair amount of money at the same time.
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$75???!!! Good Lord!...I WILL use synthetic or a blend and feel fine with paying $2.08 a quart for it.
My local Royal Purple dealer sells the 5W-20 for $90.75 per 5 gallon jug. That's $4.54 per quart. Then about every 2 months he sends out a 10% off promotion. So I pick it up then for $81.66/5 gal or $4.08/qt.
That's $2.00 more a quart than what you're using. For 7 quarts, that's $14.00 more per oil change. I put that into perspective to about 7-8 gallons of gasoline over a 5000 mile drive.
It's well worth a little extra protection considering my cold starts and trailer pulling. Plus I can double up my change interval if I want. I might even be getting some of it back with a little better fuel economy. Plus for buying the oil, I get other items like oil and air filters, Fumoto drain valves, etc. at my RP dealer's cost .
Last edited by CruelCrew; Mar 29, 2004 at 11:19 AM.
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Joined: Feb 2004
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From: Austin, Texas
Absolutely correct. That $/qt is about what Mobil 1 costs which many people swear by. For convenience sake, though, I personally don't want to buy my oil in a 5-gallon drum. I guess if you had a pump handy it would be easy enough though. I'm not sure how you could accurately measure the quantity you've put in. No doubt there's a way.
My point, as several others have also stated, is that the Motorcraft 5w20 synthetic blend is probably almost as good for less money. It meets the manufacturer's requirements, is readily available (at least in my area), and costs less. After reading reams of oil studies, I don't really think the average person has much to gain from spending any more money on synthetic motor oil (assuming regular oil change intervals). Now, if you're doing a lot of heavy towing or maybe continuous high speed driving at high temperatures, there's probably some benefit. The other advantages of synthetic oil are not as significant to me since I'm not going to extend the service interval and I don't live in a sub-zero climate.
My point, as several others have also stated, is that the Motorcraft 5w20 synthetic blend is probably almost as good for less money. It meets the manufacturer's requirements, is readily available (at least in my area), and costs less. After reading reams of oil studies, I don't really think the average person has much to gain from spending any more money on synthetic motor oil (assuming regular oil change intervals). Now, if you're doing a lot of heavy towing or maybe continuous high speed driving at high temperatures, there's probably some benefit. The other advantages of synthetic oil are not as significant to me since I'm not going to extend the service interval and I don't live in a sub-zero climate.
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I have always had good luck with Castrol. I'm thinking about going full synthetic for the first time though. Is Castrol's synthetic as good as their regular oil? The fact that the truck comes with a synthetic blend makes me reluctant to use regular oil. Is this reasonable?
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I have always had good luck with Castrol. I'm thinking about going full synthetic for the first time though. Is Castrol's synthetic as good as their regular oil? The fact that the truck comes with a synthetic blend makes me reluctant to use regular oil. Is this reasonable?
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My dad (long time Porsche mechanic) always liked Castrol...but he's switched to Mobil 1. I think Mobil 1 is the original oil in all new Porsches (or it was when I worked with him awhile back). Anyway, he really seems to like the Mobile 1 products. I think I said this above...I'm just going to stick with the Motorcraft 5W20 synthetic blend for now. If they come out with a full synthetic, depending on the price, I might switch to that. My wife already gives me a hard time about the extra fuel costs...hehe
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From: So. La.
Know the limitations of what you want to use.
Basically, terestic oil will gum-up and varnish when over heated due to say an improperly operating cooling system or running the oil beyond its useful life (when it loses its shear strength). Contamination not withstanding, heat is this oils worst enemy.
Where as sysnthetic oil holds up better to high heat - they actually promote cooler engine operation, and resists shear destruction better, so it can be run longer.
Basically, terestic oil will gum-up and varnish when over heated due to say an improperly operating cooling system or running the oil beyond its useful life (when it loses its shear strength). Contamination not withstanding, heat is this oils worst enemy.
Where as sysnthetic oil holds up better to high heat - they actually promote cooler engine operation, and resists shear destruction better, so it can be run longer.
