Motorcraft 5w-30 oil

[Screamin' Demon]

For the past 2 1/2 years I have been running motorcraft 5w-30 non-synthetic oil in my stang, but recently I talked to Ford and they are not making the standard oil in 5w-30. The have a semi-synthetic blend that supposively replaced the regular and the guy said all the newer mustangs are designed to run this.


Now my question is, I have 100,000 miles on my stang and I don't know whether to use the blend or switch brands, but I am rather upset about this. Do any of you know the reason for this sudden change and can inform me what oil to use. My car is due now for a change and I can't get my normal oil. Will it hurt anything or even run better with the blend?????



Thanks

 

[Seraphitia102]

If there are holes/leaks in your engine oil case that are sealed over time by conventional oil, they might be cleaned up by synthetic oils thus causing a leak. If your engine oil case is in good condition, synthetic oil will only make your engine run cleaner and smoother. I'd suggest that you try it, and if you don't see any oil leaking, then stick with synthetic (in my opinion). Synthetic can only do you good.

 

[bdcardinal]

it wont hurt anything. the motorctact brand oil is actually one of the better non synthetic oils on the market.

 

[YardSpecial]

If there are holes/leaks in your engine oil case that are sealed over time by conventional oil, they might be cleaned up by synthetic oils thus causing a leak.

TOTAL BS !!!

A leak is a leak, had nothing to do with the oil.

I run full Syn Motorcraft, works great....

 

[KronicRacer]

not really bs dude there are a ton a variables that have to take place too many to consider. it can happen when switching on a high mileage motor. there is eventual sludge buildup that happens that blocks leaks, thus his concern. if its a brand new motor under70k thats been well kept no problem. on the switch. high milage never run on a syn blend better to be cautious and be ready for a potential (key word)leak.

 

[bemol]

Well, try Motorcraft 5w20, is semi-synthetic and might be best of both worlds.. I use Mobil 5w30 synthetic, feels great!

Cheers
Dan

 

[Gearbanger 101]

Ehhh, just replace it with any one of the other brand name non-synthetics and you'll be just fine. Will it hurt anything or run any better with a blended or full synthetic??? Nothing you'll ever notice in either direction, so don't sweat it. Just make sure you do regular interval changes and use a quality oil filter and you're golden.

 

[YardSpecial]

not really bs dude there are a ton a variables that have to take place too many to consider. it can happen when switching on a high mileage motor. there is eventual sludge buildup that happens that blocks leaks, thus his concern. if its a brand new motor under70k thats been well kept no problem. on the switch. high milage never run on a syn blend better to be cautious and be ready for a potential (key word)leak.


STILL BS !!!

Drive a car proper and no sludge build up with dino oil. (fact)

So your statement only appplies to a non-maintained engine.

My proof:

Switched to FULL Syn, 4 diff brands

130K 460
200K 302

No problems,SLUDGE or LEAKS !

The Expert

 

[MT1083]

We switched to full synthetic in our van with about 90k and it developed a leak. We switched back to non-syn and leak is gone. I believe that its because syn is a thinner/finer oil, it can seep through where a normal oil won't. Just my thoughts...for what its worth...probably nothing haha

 

[YardSpecial]

Lets see, 6 used cars with unknown historys.

None of the internet myths proved correct.............

point, take care of car..................

 

[Screamin' Demon]

Thanks for the replies guys. The 5w-30 is a semi-synthetic or a blend, so will that work alright>? I don;t dog my car one bit and she rarely sees 4k on the tach.

 

[KronicRacer]

Lets see, 6 used cars with unknown historys.

None of the internet myths proved correct.............

point, take care of car..................

i can live with that

LOL and for the record i wasnt saying it will happen just that there is a chance if it hasnt been taken care of like ive said before on mods and stuff what works on one car may not work on the other. not every car is the same and niether is the driver. the point remains take care of it.

 

[AtlanticGT]

The synthetic causing leaks problem is just a myth that has gone way out of control.

 

[sgarlic]

Wow..there are some uninformed people in this thread.

Visit RP's site sometime, or AMS Oil. You'll see the very concern you're claiming is a myth, addressed and explained by each company.

 

[KronicRacer]

straight from the royal purple website faq

there can be an issue in the higher milage motors
http://www.royalpurple.com/techa/faqsa.html

Will synthetic oil cause my engine to leak?

Properly formulated synthetic oils will generally not cause an engine oil leak. Synthetic oils possess a higher degree of natural solvency, which can clean and remove deposits left by other oils. The removal of extensive oil deposits can expose marginal or damaged oil seals that may then leak. If an engine currently has excessive oil consumption (i.e. greater than 1 quart / 1,000 miles) the recommended course of action is to solve the oil consumption problem before switching to a synthetic.


again this rienforces if its a new motor from the amsoil faq.

http://www.amsoil.com/frequent.aspx#consumption

Will AMSOIL Motor Oils decrease oil consumption?

Yes. When used in mechanically sound engines, AMSOIL Motor Oils can reduce oil consumption. Under test conditions, a reduction of as much as 42% was demonstrated for prolonged periods. However, this should not be taken to mean that AMSOIL Motor Oils are “cure-alls” for engines that consume oil because of mechanical problems.

all in all if you are going to switch its better to do is soon than later.

 

[sgarlic]

Wow..there are some uninformed people in this thread.

Visit RP's site sometime, or AMS Oil. You'll see the very concern you're claiming is a myth, addressed and explained by each company.

I would've done the copying and pasting, but I wanted somebody else to read it as well. Thanks. And there you go above posters who say it's a myth. You're wrong.

 

[COBRA90GT]

You'll be fine running the Motorcraft
semi-synthetic blend or their full synthetic. Your call - just monitor the situation accordingly.

 

[sgarlic]