Best o.t.c. conventional

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I think I read about Supertech's oil (non-synth) on this board...

better than quaker state, but not up to par w/ Pennzoil.

Wal-Mart has 5 qt jugs for $4.80

I'd use that before Castrol GTX.
 
quote:

Originally posted by joee12:
Patman, I agree that Castrol is a good oil, you just don't hear many people on this board talking about it. Since I can't get Chevron Supreme at Walmart, I have been putting the 5 Quart container of Castrol GTX($8 US) in my Explorer with a Motorcraft FL 820-S filter. -Joe

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Patman, I checked out your homepage, very nice. I knew that you were a Firebird/TA fan, but I had no idea that you were also a 5.0 Mustang fan. I used to own a 1990 5.0 LX convert, the limited edition that was green with the white top and white leather interior. -Joe
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Sweet! The 7UP cars! I am sure you know this, but those limited edition cars were supposed to be contest prizes from 7UP, but the contest never happened. I worked with a guy who had a rare 5 speed car, most of those were auto. His was even more rare because there weren't many Canadian cars either.
 
Metroplex'

"I'd use that before Castrol GTX.)

That is a interesting statement that I would like to know how you can quantify it. Is it a money thing or do you actually think the Supertech is better than Castrol?
 
Quote by Patman:
"Does Ford realize that a good 10w30 synthetic will flow just as fast on a cold start, if not faster than a poor 5w30 dino oil will"

You bet they do! The EPA or CARB has a noose around their neck though.And it will cause this eventually
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A good 10W-30 synthetic costs 4-6 times as much as a decent 5W-30 dino oil that will run fine in a HIGH PERFORMANCE Ford V8 application.

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Ford recommends 5W-20 for 2001-up engines, which is strictly for carb/EPA/gas mileage reasons. DO NOT USE 5W-20!!!!!!

I'll say this again, 5W-30 is what a large number of reputable and solid (iron-clad) sources recommend to use in modern Ford V8s - even for 400+ hp applications. 10W-30 will run fine but hey its your engine. I know folks who run M1 5W-30 year round in California with plenty of horsepower and are street driven - zero problems after 150k miles in 2 years. Engines were reported to be "brand new" upon dissassembly for more modifications
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I believe the factory fill for the Mustang Cobra is 15/50 Mobil

Mobil Supersyn is 3.00 per quart in the 5 quart jugs,some 5/30 plain dinos are approaching 2.00 per quart. Just yesterday saw the Castrol GTX for 1.79 a quart at Walmart,6.88 for a 5 quart jug though

Still interested in knowing why you would pick the Supertech oil over Castrol GTX ?
 
quote:

I believe the factory fill for the Mustang Cobra is 15/50 Mobil

uh.... last time I checked it was 5W-30... the newer ones probably have a 5W-20 recommendation but 5W-30 is the right oil to use in that engine.

In fact the DOHC can be quite picky about what oil you use.
 
Chevron Supreme 5W-30 is $1.09/qt

Pennzoil PureBase 5W-30 is usually $1.19-$1.30/qt at K-Mart when its on sale.

There are no "5 or 4" qt jugs of M1 at Wal-Mart in Northern NJ. The only M1 prices I've seen go for $4.50/qt MINIMUM. I have yet to see these fabled 5 qt jugs that sell for ~$2.50-$3/qt

What's also interesting is that Super-Tech Full Synthetic 10W-30 appears to be Quaker State Full synthetic 10W-30, most likely w/ different additives but both having a same base stock (API SJ/GF-2 rating), 1-decene homopolymer hydrogenated - what MolaKule referred to as a PAO base stock! However, Quaker State Synthetic (with the 1-decen deal) does not have as low of a pour point as Pennzoil w/ Pennzane 5w-30, which in turn has a lower pour point than Mobil 1 5w-30 w/ SuperSyn.

Hmmmmm
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metroplex
Cobra sold here in Oz unchanged except for RHD conversion by Ford Tickford Experience. Castrol rec oil is 10W40 dino, Shell 5W40 syn or 10W30 blend, Valvoline 10W30 blend. No 5W30 at all.

Interesting isn't it??
 
Patman thats true yet there are many out there,,another forum has at least a post a week about why the cam went flat at 500 miles.I have tried in he past to tell them of GF3 and the ramifications in out hot rods. They don't listen for the most part,get a couple guys interested then a couple disrupters join the thread and it's ruined. You can lead a horse to water but you cannot make him drink
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I was looking for the factory fill synthetic thread the show Metro what is put in he Supercharged Cobra but could not find it
 
quote:

Originally posted by metroplex:

quote:

I believe the factory fill for the Mustang Cobra is 15/50 Mobil

uh.... last time I checked it was 5W-30... the newer ones probably have a 5W-20 recommendation but 5W-30 is the right oil to use in that engine.

In fact the DOHC can be quite picky about what oil you use.


Metroplex, Dragboat is right, 15W50 is the factory fill and recommended for the new 2003 Cobra. -Joe
 
I'll double check with the Stang guys, but for pre-03 Cobras they are all spec'd for 5w-20 or 5W-30.

The GT folks who run blowers all use 5w-30.

15W-50 is way too thick for the quad cams... 5W-50 or 5W-40 I can understand but 15W-50 sounds way too thick for cold startups. Again I'll double check.

If the DOHC can use 15W-50, then heck I can run 15W-40 in my SOHC. But that's not the case - Police departments do run 15W-40 in their engines but it only serves to prevent oil burning through the rings/stem seals.

Just FYI the ppl with SOHCs and blowers mostly run 5W-30 year round.

My guess is Ford wants to cover their own a$$es by using 15W-50 Mobil 1 to make sure the engine just doesn't blow up ... considering the Cobra's horrendous track record throuhg the years
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Metroplex, I couldn't find the oil specs on the website, but here are the specs for the engine:

Displacement: 4,601cc/280cid
Compression ratio: 8.5:1
Horsepower: 390 hp @ 6,000 rpm
Torque: 390 lb.-ft. @ 3,500 rpm
Specific output : 84.8 horsepower per liter
Redline: 6,500 rpm (fuel shut-off at 6,500 prm)
Valvetrain: Double overhead camshafts, chain drive to exhaust cams, secondary chains from exhaust to intake cams, roller finger followers with hydraulic lash adjustment, oval-wire beehive shaped valve springs, four valves per cyclinder
Intake valves : 2 per cylinder, 37mm head diameter
Exhaust valves : 2 per cylinder, 30mm head diameter
Fuel system : Sequential electronic fuel injection
Ignition system : Distributorless coil-on-plug
Induction system : Eaton Corporation Generation IV Roots-type supercharger with water-to-air intercooler
Boost pressure: 8.0 psi maximum
Intake manifold : Cast aluminum, tuned equal length runners
Throttle body : 57mm twin bore
Mass-air sensor : 90mm diameter
Exhaust manifolds: Cast iron
Exhaust system: Dual, stainless steel, 2.25-inch diameter; 3.0 inch polished exhaust tips

My neighbor works at a Ford Dealer, which is and SVT dealer. Call SVT at 1-800-FORD-SVT. -Joe

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Mobil 1's website says that 15w50 is factory fill in the Mustang Cobra R, but this is not the 2003 supercharged Cobra, but instead is the 351ci equipped Cobra from a few years ago (I think it was 1999)

The new supercharged Cobra is not labelled the Cobra R. As a matter of fact, the Cobra R is pretty much a race car, it has no radio or AC, and has a super stiff suspension not really suitable for street driving.

I still wouldn't run 5w20 or 5w30 in the new supercharged 2003 Cobra though.
 
By the way, a friend of mine has a 96 Mustang GT with a Vortech blower on it and he runs nothing but 10w30 Mobil 1, with no problems.

He recently bought a 97 Cobra convertible, and is running 10w30 Mobil 1 in that as well. He also plans on putting a Vortech blower on that one too.

(his GT is still for sale if anyone is interested, he lives in NJ and wants 15k for the car)
 
What are we arguing about here, 5w30 vs 10w30? I see you make referenses to California. How cold does it get there? Here in Dallas, it very rarly gets below 30* F. I'd bet there is very little change in vis between a 5w30 and 10w30 oil at 30*F and above. Also, in the summer, it is > 50*F just about everywhere in the states. I'd bet *alot* of money that there is no signifigant differences.
 
No argument from me,10/30 is the best way,5 degrees pour point difference in most dino oils.

Way up North would still run a 10/30. Just in the SS Mobil SS or the Schaeffers Blend.

In a hotrod,a different deal. Engine by engine basis in deciding

A State Trooper was getting gas a few weeks ago,I heard his Crown Vic engine sounding terrible,asked what oil they used,he said 5/30 Valvoline every 3k or about a month. The car had 88k on it,they take them to the various lube centers for oil changes unless they are in the State maintenance shop for other routine stuff like wheel bearing pack,brakes ect. Have noticed they are changing back to Chevrolet,either the Fords did not work out or they got a better deal?
 
quote:

Originally posted by dragboat:
A State Trooper was getting gas a few weeks ago,I heard his Crown Vic engine sounding terrible,asked what oil they used,he said 5/30 Valvoline every 3k or about a month. The car had 88k on it,they take them to the various lube centers for oil changes unless they are in the State maintenance shop for other routine stuff like wheel bearing pack,brakes ect. Have noticed they are changing back to Chevrolet,either the Fords did not work out or they got a better deal?

The switch over to Chevy probably has something to do with the "explodes on impact feature" of the Crown Vic. Lots of bad press for Ford.
 
I stand corrected
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, I just talked to Mark at at the SVT hotline, and I am shocked, he said that the recommended viscoscity is 5W20. Can you believe that. I asked him if he was not mistaken, and not thinking of a GT. He said that he was positive.

03 Mustang Cobra After a couple of runs down the dragstrip with 5W20 oil:

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