To Syn or not to Syn, that is the question :)

[mossad]

I have a 2000 Dodge Gr Caravn, and I Have a 1995 Chev Lumina. The Lumina has a bit more oil seapage than the Caravan does. The Caravan's engines is complete dry except for a small bit of moisture around the oil pan gasket... Dodge has 67k, and the Chevy has 127k.

Is it true what Advance Auto tells me that I will not hurt a thing by putting in synthetic? Does synthetic like Mobil 1 have any seal conditoners in it?

 

[LargeCarMan]

It's true mossad, run synthetics at your will. If you want a seal conditioner, use a oil like Valvolines synthetic Maxlife oil. Look through the deal section at the bottom of all the different forums...it can be had after rebate for cheap. I would run 10-30 in both.

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http://www.valvoline.com/qrz591dpoyu/step1.asp?rc=185F7C1128&coaid=1079134EE68

 

[Triple_Se7en]

If your engine is dirty, I would Auto-Rx it first. Otherwise you may cause a debris-shift of nasties inside in your engine that a synthetic may loosen - due to it's higher detergency.

Some engines do fine undergoing the switch -- other will begin to clatter because they weren't well maintained. We cannot see inside your engine -- so every opinion here is either a blind guess - a recommendation of what worked for someone else - or a cautionary amber light.

 

[RF Overlord]

quote:

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Originally posted by mossad:
Is it true what Advance Auto tells me that I will not hurt a thing by putting in synthetic? Does synthetic like Mobil 1 have any seal conditioners in it?

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Yes, it's true. You can switch to synthetic oil at any time. As far as synthetic oils having seal conditioners, they all have some, but it's primarily there to balance the seal-drying effects of other additives. If you suspect you have some dried/hardened seals, then use one of the "higher-mileage" oils. They are formulated to be at the thicker end of their viscosity rating and contain extra amounts of detergent/dispersants and seal conditioners.

 

[m2200b]

Will you run the syn long OCIs? If not
I wouldn't use it anyway. And to syn or not to syn is academic if you remain a 3K OCI guy.

 

[KieferS]

i use mobil syn blend and change it every 2999.9 miles.

 

[Tempest]

I switched to Amsoil from conventional in my Ranger with 80K miles on it with no problems (actually runs quite a bit better). I would have run an ARX cycle first had I known about the product before I switched though. That should really help with any seal concerns.

 

[Thatwouldbegreat]

quote:

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Originally posted by KieferS:
i use mobil syn blend and change it every 2999.9 miles.

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I could see 2999.1, even 2999.2...but don't push your luck by going to 2999.9. You'll lose all the blinker fluid!

 

[Brandon Gatz]

use syn if:
1)you are not leaking oil. Syn's smaller molecular makeup = more leaking oil. I say this from personal experience)
2)like to save the environment just a little
3)would like to change your oil half as much
4)like the idea of a viscous fluid that's slicker than snot on your internals

 

[bruce381]

""If your engine is dirty, I would Auto-Rx it first. Otherwise you may cause a debris-shift of nasties inside in your engine that a synthetic may loosen - due to it's higher detergency""

is that not what RX is suposed to do??
bruce

 

[BrianWC]

ah true...

As an aside, I've never seen synth alone dislodge massive amounts of crud without some help...from a solvent.

 

[bruce381]

yeah esters and aromatic solvenst rule

bruce

 

[KieferS]

quote:

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Originally posted by Thatwouldbegreat:

quote:

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Originally posted by KieferS:
i use mobil syn blend and change it every 2999.9 miles.

---

I could see 2999.1, even 2999.2...but don't push your luck by going to 2999.9. You'll lose all the blinker fluid!

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Hehhehe- Yea man,don't wanna burn out the blinkers. On a side note- my aunt who works at walmart tells me there is a 5 quart jug of M1 on sale for only 14 dollars today

Im gonna go buy ten quarts now.