Hi,
I have a 2002 F150 4.6 v8 and was interested if any one is using Royal Purple oil and what have been the results.

 

Great oil! I feel Royal Purple and Mobil 1 are two excellent lubricants. Drag racers are big with Royal Purple. Use Royal Purple's 5w30 oil in your 4.6 Ford. I'm sure you will notice a silky smooth quiet engine, especially at cold start-ups, and a slight improvement in your mpg. Check your local Pep Boys if you have one in your area. Ours is stocking 5w30 and 10w30 weights, Purple Ice coolant additive and RP tubed chassis grease. The store manager also told me they can order any specific product from Royal Purple if needed, race oils etc. Check out royalpurple.com for more info as well.

 

Wow...somebody is enthusiastic. ::grins:: Got any stock?

Just playin with you man. From my reading, RP sounds pretty snazzy too. I'd just rather have a honey-colored oil.

 

While I'm sure that RP is a fine oil, I have a hard time swallowing that it is far superior to any oil I can find at the local Walmart.

In lay-man's terms, not enough benefit to offset the expense, IMO.

 

Hello: Your post on Royal Purple oil is interesting. However, I've never bought any and I was wondering what it cost?
Thanks.
Springs
1999 F150 V6, 5 spd.

 

I've been using Royal Purple for several years in both my F-250 & my drag Ranchero. I use the 5-20 in the 250 as recommended & the racing oil in the Ranchero. Very happy with it.

 

As far as synthetics go, it's number two as far as what I would use. Hard to dismiss Mobil 1...but if I wasn't using Mobil 1 then I'd probably be using a Royal Purple oil, with third being Valvoline Synpower.

 

Last time I was at our local napa, RP 5-20 was on the order of ~$5.00 USD a qt.

FWIW, a 1 time oil change on my 5.4L with RP would cost $30 in oil (6qts x $5)....lets say that you could run that out to 10k miles for argument sake.

You can buy MC 5-20 for roughly $1.50 a qt at Walmart, and it has been proven to handle 5k mi OCI's through numerous uoa's on the net. But for argument's sake I'll use a 3k mi OCI.

$30 of RP 5-20 (6qts) = 10k mi.

$30 of MC 5-20 will get you 45 qts.

45qts / 6qts per change gets 7 oil changes with 3 extra qts. Add another $4.50 to yield us a total of 8 oil changes

8 x 3k = 24000 miles.

In review:

$30 of RP 5-20 = 10k miles....maybe 15k, but I doubt it.

$34.50 of MC 5-20 would get you 24,000 miles going by the severe duty OCI as per your owners manual, 32k mi if you stretched your OCI out to 4K, and 40K mi if you were brave (I reccomend a uoa) and had a OCI of 5k mi.

MHO.

 

Thank you superrangerman for the cost analysis. It helps to be able to see the financial differences.
For many years I've used Super Tech oil at 84 cents a quart and with the F150 I use Motorcraft filters changed every 5,000 miles. My reasoning is that it has the same SL rating that all the other motor oils on the Walmart shelves have and likely will do the job well.
However, if anyone is more comfortable with a brand name oil, conventional or synthetic, they should go with that and gain the peace of mind.
Springs.

 

I couldnt agree more!

I used to be one that thought that you had to buy expensive oil just to get decent results, and even with that expensive oil, I still changed it out every 2K. Imagine changing out M1 every 2-3 weeks, which was about how long it took me to rack up 2K mi at the time.

After following this forum and BITOG, I realized that I was literally pouring hundreds of dollars into my motors when a $30 amount of oil (per year) could serve me just as well, or even better.

Any oil will perform just fine as long as you curtail the OCI to match the type of oil you are using.

I realize that there is more to choosing a oil than just cost, but in most cases, IMO, boutique oils have better be worth thier weight in gold, to have any advantage to any oil available down the street.

 

I ran Royal Purple back in '92-'95 in an Explorer V6. No problems at all. About 60k on the engine. (Bought in bulk in five gallon containers through a distributor.)

Also ran Mobil 1 in my recently sold '98 Expy to about 70 K on engine. (Bought off of discount retail shelfs.)

I can't justify either of them regarding oil-change costs for the "huge" sump on my Ford 6.0 Diesel.

 

Like was said, great oil, but I dont think the benefits will offset the expense.

 

I think this was an ADvertisement for Royal Purple??

Like I said, a good product, but too high priced!

Dragster runners might think different, but for a daily driver, I think not.

 

There is very little benefit of going to syn nowadays. SL rated oils are great, and disel rated oils are even better with more cam protecant additives and better sluge restiant properties. Mystic is my favorite and I run it in my PSD as well as my 352.

 

We inadvertantly speak of engines as they are all alike here . Not so . Older or even rebuilt engines with carbs don't deserve synthetics really because of fuel dillution and the need to drain it early or even if they burn a little it gets costly .

Then take into consideration this is a Ford vehicle forum . I don't know of any fuel injected Ford that will live a longer life or get better gas mileage on synthetic than mineral oil .

In the world of synthetics , I am not sure where Royal Purple fits in . If you want longer drains , it won't hang with Mobil 1 yet costs more than M1 . If you run 3-5k on great Motorcraft at 1.40 a quart where does RP fit in since they both will go about the same miles ?

Good oil with medium performance at high performance price ?