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Old 02-18-2009, 11:04 PM   #1
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oil

what oil is better ???

i always use motorcraft 5w - 20 in my car , but what about castrol syntec or royal purple??
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Old 02-19-2009, 04:52 AM   #2
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Re: oil

everyone has their preference, i think the motorcraft oil is actually really good. it was all i ran in my dad's ranger we put over 200k on the v6 and it would not burn any oil. if u are wanting to run a full synthetic oil, i always used mobil one. i used it in my gt for 4 years now, and when i took the engine down to upgrade the heads, it looked brand new inside. but like i stated earlier, everyone has a preference. the mobil one i use is a full synthetic, the motorcraft oil is a synthetic blend.
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Old 02-19-2009, 09:26 AM   #3
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Re: oil

synth oil is better but.. if you have been using regular ford synth blend oil for a long time just keep it up~

synth lets you go longer between changes as well
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Old 02-19-2009, 09:32 AM   #4
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Re: oil

mobil one !! I've been using it since the first oil change And like Brandon said you can go a little longer between oil changes Do a search we have several threads about oil
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Old 02-19-2009, 10:25 AM   #5
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Re: oil

One thing to watch for if you use synthetic oil is some leakage. It's so slippery that it may get through your drain bolt gasket and/or rear main seal. If your dripping oil, keep an eye on the level or really bad things could happen, haha.
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Old 02-19-2009, 01:26 PM   #6
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Re: oil

used royal purple the past 2 changes. so far so good. when i took off my filter the oil in there still had a dark purple look to it. also don't forget to use a good filter, avoid Fram.
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Old 02-19-2009, 01:38 PM   #7
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Re: oil

good ole ford oil filters are some of the best for the money~ thats what I use.
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Old 02-19-2009, 01:45 PM   #8
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Re: oil

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synth oil is better but.. if you have been using regular ford synth blend oil for a long time just keep it up~

synth lets you go longer between changes as well
i always used motorcfrat oil for 2 years ( i have the car fot 2 years now) is a 2001 and have 45,000 miles on it, so i want a oil that protect the engine better
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Old 02-19-2009, 02:12 PM   #9
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Re: oil

motorcraft oil filters are made by Purolator and i hear the inside of the motorcraft is the same as the Pure One filters and the Motorcraft cost around $2 less so it's a good deal. i have a Mobil 1 filter on right now, it works pretty good.
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Old 02-19-2009, 02:15 PM   #10
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Re: oil

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motorcraft oil filters are made by Purolator and i hear the inside of the motorcraft is the same as the Pure One filters and the Motorcraft cost around $2 less so it's a good deal. i have a Mobil 1 filter on right now, it works pretty good.
i always use motorcraft filter but this time i think i ll go with k&n oil filter
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Old 02-19-2009, 02:24 PM   #11
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Re: oil

When it comes to filters, the manufacturers always have the best filter for the vehicle. You will pay more (in most cases) but it's worth it. Go get a Fram filter for say a honda civic, then get one from a dealership and cut them open and look at the insides. HUGE difference!
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Old 02-23-2009, 03:03 PM   #12
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Re: oil

If u want to use a Full Synthetic Oil Amsoil is one of the best. i have been using it my stang for 17k miles now. 130k now 147k and my car still runs good. from what i heard the other oils out there that say they are synthetic are only 1/2 of what they say they are. amsoil is not refine from crude oil like mobil one and other top brands. and on top of all that they give u a warranty.
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Old 02-23-2009, 03:11 PM   #13
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Re: oil

this question has been posted several times. As a Tech. I have come to the answer of it is up to the person. In a car that sees a lot of hard driving I suggest a heavyduty syn. In a daily driver, fossil oil is just fine unless it calls for syn. fron the factory. case in point I have a 1994 silverado with 238k miles and all I ever used is penzoil 10w-30 and canged the oil every 3k. and the motor doesn't burn any oil or leak. and only has normal sluge for the milege. I've never been in the motor, but only to change the timming chain at 174k. I still drive it today. and keep in mind I drove this truck through high school, so you can know I beat the crap out of it.

Now I do run slick 50 high milege in it every other oil change.

for the mustang I run Royal purple, cause I bet on the car quite hard. but that's what I have it for.
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Old 02-23-2009, 05:09 PM   #14
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Re: oil

mine is a daily driver but i just want the best for my car , so i will use synthetic but not sure what brand
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Old 02-23-2009, 05:53 PM   #15
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Re: oil

No issues with mine 5w20 motorcraft, with a good additive, and dog mine from time to time. I used Royal Purple in my ole GTI though cause the car was know to have oil slug issues with the turbo, but never an issue with the royal purple.
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Old 02-23-2009, 06:06 PM   #16
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Re: oil

my parents use that 5w20 in their marquis, never had any issues as far as I know... it has like 75k on it
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Old 02-24-2009, 09:34 AM   #17
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Re: oil

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Originally Posted by carlosc View Post
mine is a daily driver but i just want the best for my car , so i will use synthetic but not sure what brand
royal purple is the best money can buy
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Old 02-24-2009, 01:06 PM   #18
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Re: oil

if a use royal purple can i swith to another brand? some peolple said not, but is a myth or is true??
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Old 02-24-2009, 03:31 PM   #19
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Re: oil

you can switch to any oil after using another. it's like this if switching to or from a syn. you need to use a syn. blend in between. or it will create a slug in you oil pan. you can swap to diff. brands of syn. oil.

You can even chane to diff. weights oil from oil change to change. you just can't mix diff, weights or brands inside the crank case.
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Old 02-24-2009, 03:38 PM   #20
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Re: oil

I've used both regular oild and straight up full syn. I always have used the K&N oil filters i dunno though that's just my choice, but also for good engine maintence and working on them as long as i have, i wouldn't go far over the 3000 mile mark, like those oils that claim you can.. nope, it's bull****, in a car and engine oil, the oil will NEVER break down, it's oil it doesn't, BUT what breaks down over the 3000 mile period is the filter... the reason they suggest to change the oil is well...

A: it's dirty, from the deposits in your engine
B: when you take the filter off you lose about a qt and a half give or take
C: who wants to add new oil to dirty...

Hense, it's not so much the oil that needs to be change but the filter because that is the main reason for the 3000 mile thought... because a filter can only take so much and then it gets clogged up hindering oil flow... just some insight, i mean 100 miles won't hurt you hell 500 probably won't but it's not suggested.

Just coming from a resident mechanic... but i'm only 23 what do i know.
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Old 02-24-2009, 03:39 PM   #21
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Re: oil

FWIW, the type of oil you run means little compared to how often you change it...Keeping fresh oil in the motor is what really matters...

Synthetic is more expensive up front, but typically lasts "fresher" longer so the added cost up front tends to go away in the long run as you have to change "regular" oil more frequently...

All of that aside, I run Mobil 1 5-20...Your three top motor oil brands out there are probably Mobil 1, Royal Purple, and AMSoil...Mobil 1 is not truly a "full-synthetic" oil, but it is still one of the best out there for quality & price...I don't know of anyone that has used the new Castrol Edge, but it is supposedly comparable to Mobil 1...
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Old 02-24-2009, 03:47 PM   #22
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Re: oil

what does FWIW mean? haha, i don't know, i'm a true 3000 mile changer no matter the oil i change but i'm anal retentive over my cars so yeah, if someone looks at my car wrong i get peeved...but Thats just MO. i'll never say anyone is wrong. everyone has their own opinion
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Old 02-24-2009, 04:03 PM   #23
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Re: oil

FWIW = For what it's worth

I change the oil in my truck every 5K miles with regular motocraft 5/20 & every 3K miles in my Mustang with Mobil 1 5/20...

I am more anal with the mustang as I drive much harder & more aggressively that most people do...It is pretty much a heavy duty track & autox car...Just ask Brad/Lowflyn, I am constantly hauling off somewhere to run that car
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Old 02-24-2009, 04:09 PM   #24
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Re: oil

yeah, i'm hard on cars at times... i was horrible on my RX7 i drove the **** out of that car at times... but i'm anal about every aspect of my car(s)....

i've gotten in my share of trouble over cars though, i ****ed up once over my old car and took a tire iron to a guys impala oops...
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Old 02-24-2009, 04:28 PM   #25
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Re: oil

run mobile 1 full synthetic.
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Old 02-24-2009, 05:59 PM   #26
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Re: oil

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you can switch to any oil after using another. it's like this if switching to or from a syn. you need to use a syn. blend in between. or it will create a slug in you oil pan. you can swap to diff. brands of syn. oil.

You can even chane to diff. weights oil from oil change to change. you just can't mix diff, weights or brands inside the crank case.
im using motorcraft 5w20 right now , that i think is a syn . blend, so can i swith to full syn. with no problem, i mean without that slug??
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Old 02-24-2009, 06:09 PM   #27
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Re: oil

if it is a blend than, yes you can. If it is a full fossil oil you need to run a blend first
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Old 02-24-2009, 06:12 PM   #28
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Re: oil

yeah that should be just fine, just make sure if you were running original style oil to just use a blend first then move into a full syn.
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Old 02-24-2009, 06:14 PM   #29
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Re: oil

if a oil pan already have slug , there is some way to take out that slug ??
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Old 02-24-2009, 06:17 PM   #30
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Re: oil

drop the pan and use a good de-greaser or else use a parts washer to get it all out, that's what i did for my old F-150 i rebuilt the engine on
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Old 02-24-2009, 07:41 PM   #31
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Re: oil

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if it is a blend than, yes you can. If it is a full fossil oil you need to run a blend first
isn't the motorcraft 5w20 a blend?
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Old 02-25-2009, 02:44 PM   #32
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Re: oil

did my homework , if i ll use full synthetic im gonna use castrol syntec because the other ois i have in mind was mobil but mobil 1 do not meet the ford specs in 5w20 that is what i use, RP same as mobil 1
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Old 02-25-2009, 05:42 PM   #33
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Re: oil

i've got like 2500 miles on 5w20 motorcraft oil and its already getting dark. i'm thinking maybe i should use a different oil like 5w30 or even heavier instead of this - maybe its too thin of oil...??
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Old 02-25-2009, 05:45 PM   #34
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Re: oil

I use a Pennzoil Full Syn but it's only because that's what my family has used for years and it's always work
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Old 02-25-2009, 05:47 PM   #35
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Re: oil

except for the parents marquis that says 5w20 i'd never seen cars that require oil at "20"before"..... I'm thinking a V8 should have a heavier oil. That seem really thin oil
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