I know that this has been talked about before around here, but it has been a long time and I have a oil change coming up real soon. I’m thinking of switching from Valvoline Durablend 5w30 oil to 5w30 Mobil 1 or Valvoline Synpower. My truck has 68500 miles on it. I was wondering if I would be asking for trouble switching with this many miles. I have heard several stories about leaks and using oil. I drive only 1.5 miles to work and I'm worried that these short trips are breaking down my oil. I have started taking a longer way to work so that the truck will warm up. Any help would be greatly appreciated.

Thanks,
Sierra


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1997 F150XL 4x4 SC 4.6L Oxford White, A.R.E Cab High FB Topper, Performance Exaust system, Head light, tail light and SC window covers,Ventshade bug shield, Cooper 265/75/16 tires and Pilot driving lights mounted inside the grill.

 

Hi Sierra,

For what it's worth to you, I changed to Mobil 1 at 90,000 and had no problems at all. I was on Castrol Syntec before that, and changed to Mobil I when I learned from a thread on this board proving that Syntec IS NOT a true synthetic!

A great truck.

Chopper
'97 Bright Red w/ 4.6 etc.

 

Switch to Amsoil 0W30 synthetic & SDF 11 filter, one of the best things you can do for your truck...Mark

PS Flush first

 

I have always heard that if you switch from organic to synthetic, or vice versa, it will cause the head gaskets to shrink and leak oil.

 

Does the fact that I currently use the Valvoline Durablen synthetic blend benefit me in anyway when switching to full synthetic? The blend does have a certain percentage of synthetic properties from the full synthetic oil. Currently it does not leak or use any of the blend oil.

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1997 F150XL 4x4 SC 4.6L Oxford White, A.R.E Cab High FB Topper, Performance Exaust system, Head light, tail light and SC window covers,Ventshade bug shield, Cooper 265/75/16 tires and Pilot driving lights mounted inside the grill.

 

Switched from dino oil to Amsoil 5W-30 Synthetic at 44K miles. Not a single problem.

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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, 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



[This message has been edited by F150IslandBoy (edited 12-21-2000).]

 

I use Amsoil 20w50 and love it. I am an Dealer. If you would like some info on Amsoil, click on the PureAmsoil at the bottom of my reply and it will take you to my web page. You can reqest a catalog and info all about Amsoil. Thanks and you can't go wrong with Amsoil.

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Ruger's F-150

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E-MAIL ME:
pureamsoil@bigfoot.com

PureAmsoil

 

ruger_dfw, the oil you are using is WAY too heavy for your truck. Unless you do a lot of heavy towing, your truck will run better on Amsoil series 2000 0W30 synthetic. It's hotter than hell here in the summer & my truck runs superbly, 108,000 miles & doesn't burn a drop.....Mark