I have asked Ford via the Ford homepage about the use of synthetics and they have told me that Ford does not prohibit the use of synthetics in its engines as long as the oil meets Ford's specs.

However, a few of the shop managers at the larger dealerships said that Fords block are not cast to use snythetic oils and that the synthetic oils will "absorb" into the block and could "bleed" through it into the water jackets or to the outside of the block.

They also said some guys they know who build engines (paint) the inside of the engine block (not the cylinders)to prevent this so-called seepage.

Also a friend of mine who is a chevy mechanic and owns a new s-10 stopped using Mobil 1 because the engine had a lot of leaks.

Living in Pittsburgh the use of a synthetic would be good, but if I had engine problems, I could have a problem at the shop.

Any comments?

 

I have used Amsoil Series 2000 0W30 synthetic motor oil for 106,000 miles. There are no leaks and it doesn't burn a drop. I also use Amsopil SDF11 filter & change both every 10,000 miles...Nuff said...Mark.

 

oh my. Bad advice to say it bluntly.

Basically if your engine already has faulty seals or failing ones, synthetics will make the leaks worst. Why? Because one they clean the deposits out that are left behind with dinosaur oil. This makes the leak worst. Second the synthetic is much more "slippery" (as a non technical term) and will out flow conventional oil of the same weight. So once the leak opens up from the removal of the deposits, here comes the oil!!

The engine block stuff, oh my! LOL! So you are saying that the engine block material is so porus that fluids can leak through! NOT!
I would say that is BS! Maybe the pan gasket is poor and would leak with synthetics or maybe the machining is poor and the fit with the oilpan is very poor.

Do some research on your own. Do a search for synthetic oils on this BBS, you will find the topic discussed in length many times. Also check like the Amsoil homepage: http://www.amsoil.com

 

BULL-HIT.......I have used mobile 1 since 1000 miles, no leaks.....I have always used mobile one on my vehicles in the past...92 z28, 94 z28, 94 z71, 97 F150, 98 F150.....none of them leaked, including my current F150....why do corvettes come with synthetics from the factory......(no wonder they spin the tires so easy, all that oil leaking on the tires)

Becareful if these guys are your mechanics....Dave

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1998 F-150, SC/Flairside,oxford white 4x2,4.6,auto,3.55s,nerf bars,cls 111 towing,bed liner w/mat,Eagle polished wheels 16x10 w/Yokahama Geolandars 315/75/16s,all plastics guards/bug shields,air raid/k & n filter, superchipped, duals out the back corners, flow master 3 chamber, snug top lid, f-150 online sticker back window-honk if you see me!!! Fabtech 3 1/2 lift,3" spindles, 3" body lift=9 1/2 inches of lift, lift lips.coverking dash cover, Lumi Logo's (front and rear), clear front corner lenses, muth mirrors,dash mounted CB, (TX Chapter requirement,lol),personalized license plates, Superlift traction bars,Image tail light covers (painted).and it still fits in the garage, yeahhhhhh

San Antonio
DWESSELS89@AOL.COM

 

moonpa,
I think you should inform the folks at FoMoC via that ford page the dealerships name and description of the load of bull they told you..




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Y2K F250 XLT SC 4x2 5.4L 5sp 4.10LS

 

Seems to me that once conventional oil reaches maximun operating temp. it would bleed through the block same as synthetic. But I could be wrong.

 

I purchased my trucked used.
It had 65K on. The second i read about the drainback valve and mobil 1 i changed at like 66k i now have 81k on her and i have been using mobile 1 synthetic ever since no problems. Mobil 1 oil kicks ***!

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97 F150 4.6 v8 longbed
_ ___________________ _
K&N Air filter
K&N FIPK TECH MOD & REMOVED ELBOW SILENCER
_ __________________ _
Hyper White xenon bulbs
_ ___________________ _
Bedliner and Raven Shell
_ ____________________ _
6 disc cd changer

OIL & FILTER USED Mobil 1
_ _____________________ _
Gas used TEXACO & CHEVRON

 

Switched to Amsoil 5W-30 Synthetic from dino oil. No problems, leaks or oil seeping through the block........ROFLMAO

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F150IslandBoy

1997 F150 Lariat
SuperCab, Dark Toreador Red w/ Gold, Styleside, 4.6L, A/T, A/C, 3.55 Limited Slip, Class III Tow Package, Leather Captain Seats, Sliding Rear Window.
Modifications:
Airaid FIPK, Flowmaster Delta Flow 50 Series, Stull Billet Grill, Bugflector II, Viper 500ESP Alarm, Pendaliner Bedliner, Cobra Trapshooter 3 Radar Detector, CARR Tubular Nerf Bars, White Face Gauges, Ventshade Ventvisors & Taillight Covers, Monroe Sensa-Trac w/ Safe Trac Shocks, NFA 1400 Compact 55W=>85W Halogen O.E. Lights, Durango 255/70R16, Chrome eyelet tie downs, Smoked front lic. plate cover.
Engine Oil: Amsoil 5W-30 Synthetic
Oil Filter: Motorcraft FL-820S
Trans. Fluid: Amsoil ATF

 

davensa. it looks like you get a new vehicle every 2 years, what is the point of using synthetic?

 

That's a crock of horse puckey. I've used synthetics for 15yrs with no problems. My dealership said that it was fine also. The block coating only promotes flow. I hope the oil does not leak through the small holes in my block (please..lol).

------------------
2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.

 

Man, talk about Urban Legends! I changed my bikes over to Mobile 1 after appx. 10K miles, I changed my wife's Explorer over at 72K miles, I changed my Dad's Oldsmobile over at 95K miles. NO PROBLEMS. The block isn't going to leak either. Synthetic is a slicker and better oil, the only thing you might consider is seeing to it that the motor (engine) is broken in first. After the first 1000 miles you should be just fine.

Sheesh.


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2000 F150 Harley-Davidson: Superchip, K&N FIPK
Hard Tonneau, Hidden Hitch, 2-Meter Rig (KG0UK)
'99 FLHRCI, '95 XLH

 

Moonpa,

Might as well "pile on" here too. Find another Ford dealer and mechanic. These stories get better all the time. These "Shop Managers" are from the "Twilight Zone" or smoke a joint before work........

Many dealers, not only Ford, offer "Quick Lube" services to customers using synthetics, including Mobil 1, to those who want it.

Every Ford dealer in my immediate area now offer Mobil 1 and many GM dealers too. There is NO warranty voided using synthetics as long as you use the proper weight oil and it meets Ford specs which includes all the popular brands ....... end of story! There is no rebuttal ......




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Dunbarton "The Middle Aged Kid" '99 XLT SC SB 4x2 4.6 auto 3.55 ls The occasional Z-71 Eater! Wedgewood & Denim, SuperChipped, Airaid FIPK, HD electrical and cooling, power seat, Rhino Liner, Extang Classic tonneau cover, Mobil 1. Man, I got it all! (New Jersey)

 

It's the Ford Swiss Cheese block! HAHA

 

HarlelyGuy,

Are you using the "V-Twin" Mobil 1 or the car stuff? Whichever one do you see lower temps and better performance? Just wondering, read an article on the new Mobil stuff in American Iron Magazine. But I don't know anyone who uses it.

------------------
Lube-Direct


New Lubrication Forums

 

Find a different dealer..FAST! That advice was a serious load of BS!

I also use mobil 1 synthetic in both of our new vehicles..no leaks/problems at all.

That gave me a laugh...thanks..especially since my VIKINGS are getting the crap beat out of them right now...27 - 0.



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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with super engine cooling/auxiliary transmission cooling HD package, Heavy duty shocks, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, FORD bedliner, FORD black tubular cab steps, K&N air filter, mar-hyde rubberized undercoating, Modine climate filtration system, Bugflector II, Mobil 1 oil, build 7/2000