synthetic oil

[marauderray]

is it cool to use full synthetic oil?

[jgc61sr2002]

is it cool to use full synthetic oil?


I think it is very cool.:D

[Blackened300a]

I agree. I have been using full synthetic for 2 years now.
Make sure you use 5w-20.
A member is having serious issues with his engine after using a heavier oil.
He'll post up when he's back on the road.

[fastblackmerc]

Right... Only 5w-20 full synthetic oil.

[FastMerc]

Ive been using Mobile 1 5W-30 since I bought the car no problems.

[RF Overlord]

The only reason for NOT using synthetic oil is if you insist on changing it at less than 5,000-mile intervals...then it would be a waste.

[rayjay]

Royal Purple 5w-20. :up:

[gmtech]

Ive been using Mobile 1 5W-30 since I bought the car no problems.
5w-30 Mobil 1 since i bought a year ago w/ no problems

[musclemerc]

Castrol 5~20w works great for me!:cool:

[Blackened300a]

A member listened to some dope that works behind a parts counter and used 10w40.

Not good. The tolerances are tight in this engine.

[TJCOX]

Heard That Cobras & Vettes Came From The Factory With Mobil 1!
Also, Mobil 1 Extremely Popular At The Street Legal Drags
At O.r.p. Stick With The 5w20!

[Marauderjack]

Make sure you use 5w-20.
A member is having serious issues with his engine after using a heavier oil.
He'll post up when he's back on the road.

What was the oil related problem and what weight was he using??:confused:

I have been using Mobil I 5W30 for three and a half years with no problemos!!:beer:

Marauderjack:burnout:

[O's Fan Rich]

A member listened to some dope that works behind a parts counter and used 10w40.

Not good. The tolerances are tight in this engine.

Yeah... 5 is the "cold" weight 20 or 30 is the "warm" weight
to put things in simple terms.

I've been using 5-30 Mobil 1 for quite a spell now. 72k on the motor.

[Breadfan]

Mobil 1 is great oil, and now it comes in OEM weight 5w20. Pick your poison there are many different opinions here and on other Ford related forums.

[Jolly Roger]

Castrol 5~20w works great for me!:cool:


What he said.;)

[Illss]

Ive used the semi from ford , full syn. from mobil 1 an royal purple all with the same results . +1 on the pick ur poison.

[jgc61sr2002]

The only reason for NOT using synthetic oil is if you insist on changing it at less than 5,000-mile intervals...then it would be a waste.

Bob - I thought you would use full snythetic for the superior lubricating qualities.:D

Wally World had Mobil 1 5W20 for less that $20 per gallon.

[Dragcity]

OEM recommended Motorcraft oil for me. I tried Mobil 1 vs OEM and prefer OEM. Mechanical oil pressure gauge acts better with OEM and car "feels" better. But that's just me. Plus Mobil 1 is unreasonably expensive for what it does. I ask myself how many times I can change my oil with OEM before I can break even using Mobil 1.

It is a proven fact that the more frequent the oil change, the better for the engine. Cost : Benefit analysis applies....

I am one with my car...

[MinnesotaMuscle]

Well I just did my first oil change, and not realizing the special oil these cars use I went ahead and used the wrong oil......in the last 200 miles since the change I have noticed a diffrent sound in the acceleration of the car.....I will be changing it tomorrow morning.......so I decide tt do some research online and see what I come up with....TAKE A LOOK AT THIS!


Here are the facts behind 5W-20:


Question: My owners manual species 5W-20 oil. Do I really need to use 5W-20 oil and why did my 2000 model year vehicle require a 5W-30 oil, while the exact same engine in my 2001, 2002 and newer engines "requires" a 5W-20 oil?

Answer: You do not need to use a 5W-20 oil. Do not let your dealer scare you by telling you that you have to use it for your warranty. That is a tactic that some dealerships use to scare customers. Once you know the facts and the Federal Magnusson Moss Act law you will be much better informed to protect your rights and use the type of oil you want to use.

The main reason 5W-20 was specified for your engine is to increase the CAFE (Corporate Average Fuel Economy) reported to the Federal Government. CAFE is the combined average fuel economy of all of a vehicle manufacturers product line. Minimum CAFE levels are specified by the Federal Government. In order for a vehicle manufacturer to continue selling profitable large trucks and SUV's, which typically have poor fuel mileage ratings, as compared to smaller cars, and still meet mandated CAFE requirements, they must also sell enough of the smaller cars which have much better fuel economy ratings to offset the poor fuel economy ratings of the larger vehicles. For model year 2001, the change to a 5W-20 oil will allow Ford and Honda's overall CAFE to increase by a very small amount, typically in the tenths of a mile per gallon range. 5W-20 oil is a lighter viscosity than a 5W-30 oil and therefore has less internal engine frictional losses, or less drag on the crankshaft, pistons and valvetrain, which in turn promotes increased fuel economy. This increased fuel economy is virtually undetectable to the average motorist without the use of specialized engine monitoring and testing equipment under strictly controlled test track driving when compared to a 5W-30, 10W-30 or a 0W-30 viscosity motor oil.

Question: Could using a 5W-30, 10W-30, 0W-30 or even a 10W-40 or 20W-50, oil in my vehicle which specifies a 5W-20 oil void my new car warranty?

Answer: Absolutely not. Vehicle manufacturers only recommend using motor oils meeting certain viscosity grades and American Petroleum Institute service requirements. Whether a motor oil is a 5W-20, 5W-30, 10W-30, 0W-30, 10W-40 or 20W-50 (for racing and high performance applications in, for example, a Cobra R Mustang) or even a synthetic vs. a petroleum based oil will not affect warranty coverage. The manufacturer is required by Federal Law to cover all equipment failures it would normally cover as long as the oil meets API service requirements and specifications and was not the cause of failure. In addition, the Federally mandated Magnuson - Moss Act states that a manufacturer may not require a specific brand or type of aftermarket product unless it is provided free of charge. If your dealership continues to tell you that you must use 5W-20 motor oil and or/ a specific brand of 5W-20 motor oil, then ask them to put it in writing. Their position is inaccurate, and, in fact violates existing law.*

Additionally, if there is ever a question of whether or not a particular motor oil was the cause of an engine failure make sure to get a sample of the used oil in a clean bottle, typically 6 oz. minimum. The oil can then be sent to two independent testing labs for analysis. This is standard procedure for most commercial vehicles, trucking, construction/excavation and fleet companies and there are numerous certified test labs all over the country. Remember, a knowledgeable and informed consumer is your best defense against being taken advantage of by a car dealership service center.

* Note: If a car or truck dealership, service center or other business states that using AMSOIL motor oil in your vehicle will void your new car warranty, ask for that statement in writing and send it to AMSOIL technical Services. If the business won't provide the statement in writing send AMSOIL Technical Services a letter identifying who made the statement, the name and location of the business and what the statement was. AMSOIL will then send a letter to the business informing them that their position is inaccurate, and, in fact, violates existing law. Your name will be held in confidence.

AMSOIL mailing address: AMSOIL Inc., AMSOIL Bldg., Superior, WI 54880

For those consumers that still must use a 5W-20 oil, even after reading this informative article, AMSOIL does manufacture a 5W-20 synthetic motor oil, called XL-7500 5W-20. It is a 7500 mile/6-month motor oil. AMSOIL's 5W-20 synthetic motor oil provides outstanding wear protection and increased power, performance and fuel economy in high and low temperatures and also meets and exceeds the Ford and Honda specifications.

For even better performance and protection we recommend using AMSOIL's Series 2000 0W-30 synthetic motor oil. This is the top performing AMSOIL Motor Oil for gasoline powered light trucks and passenger cars. It uses race-proven technology and provides unsurpassed fuel efficiency and better wear protection than other conventional and synthetic motor oils. It is a 35,000 mile/1-year change interval motor oil. Use it in conjunction with AMSOIL's Super Duty Oil Filter's that specify a change interval of 12,500 miles/6-months, whichever comes first.

http://texassynthetics.com/articles/fordhonda.html

[CRUZTAKER]

Royal Purple for years now.;)

Just NOT in the tranny.

[VAmarauder03]

MotorCraft Full Syn 5w-20 ftw, was gonna go with royal purple but saw no need esp since i can get motorcraft for hella cheap

[ChiTownMaraud3r]

Mobile1, 0w20 (If you can find it!). Gonna be hunting for it the next couple of days. Come on Wal Mart, don't fail me now.

[cyclopsram]

All my newer panthers run the 5-20 Motorcraft..Ford oil for the first hundred thousand, then I just use K mart oil until they rust out at about 200000.

[larryo340]

I have been using Motorcraft 5W30 every 3,000 miles for the last 145k.

[marauderray]

well i'm using mobil 1 full syn. i'll move to the royal purple next time and i think i'll stick with the purple.

[Tony_the_Brit]

It seems that Mobil 1 may be no longer a truly "full" (group4) synthetic oil. Castrol certainly is not (their european oil is fully synthetic - it has to be because they will not allow refined oil to be sold as "synthetic").

As far as I know, the only truly synthetic oils widely available here in the US are Royal Purple and Amsoil. After seeing tests of both I use the Royal Purple even though it is pricy.

[2ndMDRebel]

The Crown Vic gets Motorcraft full synthetic 5w20 every 90 days or 3k miles whichever hits first (mostly the time) and the Marauder gets Motorcraft semi-synthetic blend 5w20 every 5k miles.

[RF Overlord]

2MDR, I was gonna ask why you use the full synth in the CV and the blend in the MM...

...then I clicked on your garage...

nevermind. :D

;)

[Bobmiddle]

Royal Purple for almost 3 years now. Does anybody know of a cheap place to get Royal Purple. I am in Las Vegas and last time I paid $6.99 per qt. @ pepboys.

[Paul]

ask Astrovic about the RP

[Seneca]

5W30 Amsoil full Synthetic after the 1st 1000 miles. No problems.

[MarauderVOL]

Just picked up a Marauder and the previous owner was using Mobil 1 5W30 synthetic for the past 10,000+ miles. Owners manual says 5W20. Would it be safe to switch back to the 5W20 Mobil 1 Full synthetic?

[RF Overlord]

No worries, MarauderVOL; either oil will be just fine.

I use Motorcraft 5W-20 in the N/A car with over 94,000 miles and Pennzoil Platinum 5W-30 in the blower car.

[michael ward]

amsoil for three years now and NO problems 5w20

[sweetair]

Ive been using Mobile 1 5W-30 since I bought the car no problems.This is what I am using as well. No issues here as well. I am changing it <5k miles as well. With the Trilogy, it is only helping things out.

[DOOM]

mobil 1 5w-20 no problems here.

[RedMerc04]

I like the Pennzoil Platnum 5-30. Ive used it the last 3 oil changes. My car used to smoke on start up from time to time but since ive used the pennzoil It has not! I used to use Mobil 1.