Have a question about switching oil...

[BLACK MAMBA]

I`ve been using Motorcraft oil since the truck was new...would it hurt to change over to Pennzoil....

[Harley#356]

which pennzoil? Motorcraft is a synthetic blend. I wouldn't switch back to conventional. I'd only switch to a full syn, or just keep using the syn blend.

[Razar]

Why switch?

[Merlin]

Motorcraft is a syn blend and it's pretty good stuff. I personally use Mobil1 full syn and a Mobil1 filter. IMHO you can switch to a full synth but not to a full Dino oil.

[jdaniels138]

So if you're running full synthetic you can't switch back to conventional oil? Why?

Will this cause a problem or is this reservation because synthetic is a better oil?

I'm still running Motorcraft in my 03 and changing the oil every six months as I don't get 5k in that period.

JD

[Tweek03HD]

I switched from Motorcraft to Royal Purple 5-20. No problems at all! Go for it..

[Harley#356]

So if you're running full synthetic you can't switch back to conventional oil? Why?

Will this cause a problem or is this reservation because synthetic is a better oil?

I'm still running Motorcraft in my 03 and changing the oil every six months as I don't get 5k in that period.

JD

you can switch back, but why downgrade? Also the motorcraft stuff is dirt cheap compared to a full syn, so if you're using the motorcraft syn blend, just stick with it rather than go with even cheaper dino oil. Small price to pay for a better quality syn blend oil.

[jdaniels138]

you can switch back, but why downgrade? Also the motorcraft stuff is dirt cheap compared to a full syn, so if you're using the motorcraft syn blend, just stick with it rather than go with even cheaper dino oil. Small price to pay for a better quality syn blend oil.

yep, i plan to stay with motorcraft...

i was asking in general also for my nephew... he has a Nissan truck that was passed down to him with full synthetic. on a college budget full synthetic is a little expensize for him. he's not that handy with with the wrench yet to do it himself but he's getting there.

Happy New Year HD Guys!!!

JD

[walter123walter]

Go Royal Purple you wont regret it.

[Crushertx3]

penzoil sucks

[walter123walter]

^^ +1 dino oil sucks penzoil even more.

[BLACK MAMBA]

i guess i will keep using the Motorcraft? i just got tired of seeing the thick gunk under my oil cap and wanted to switch to something better...

[Crushertx3]

If you got sludge build up under your cap some one somewhere has mixed your oil and proably put Penzoil in it

that is the #1 oil for sludge build up

[SR81]

Ill be using Castrol Synthetic or Mobil 1 with a Motorcraft filter. Both are great oils, Motorcraft is probably one of them anyways. Most dealer brands are just a bigger brand rebottled. Btw, Penz and Quaker are the same. Im biased though, I use to work for a Castrol sponsered shop.

[BLACK MAMBA]

If you got sludge build up under your cap some one somewhere has mixed your oil and proably put Penzoil in it

that is the #1 oil for sludge build up

I`m the only owner and do my own oil change...if get a chance i will post a pic