Synthetic Oil

Oil of Choice

  • Castrol Syntec/Edge

    Votes: 233 8.4%
  • Royal Purple

    Votes: 325 11.7%
  • AMSOil

    Votes: 396 14.3%
  • Valvoline Synpower

    Votes: 160 5.8%
  • Mobil 1

    Votes: 992 35.9%
  • Other

    Votes: 660 23.9%

  • Total voters
    2,766

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Grad12

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5w20 rp since it's first change 3 since then. I'll keep posting to the forum when it hits some big mileage or I get a hickup with rp. But I'll be sticking with that for now.
 

dtru1222

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This will probably get burried in the many pages but something that no one ever mention or thinks about is VVT operation.

It was stated by one of the SRT engineers that a high moly count helps with the VVT operation, and in their SRT blend it has a high moly count. Most brands that I have seen do not. I was running Amsoil XL 5-20 and noticed a much more smoother power delivery when I changed over to the Signature Series which has a higher moly count.
 

rocket

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This will probably get burried in the many pages but something that no one ever mention or thinks about is VVT operation.

It was stated by one of the SRT engineers that a high moly count helps with the VVT operation, and in their SRT blend it has a high moly count. Most brands that I have seen do not. I was running Amsoil XL 5-20 and noticed a much more smoother power delivery when I changed over to the Signature Series which has a higher moly count.

what is this signature series you speak of??
 

TomR00

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I just changed my oil on my 2013 Express, 7,012 miles to Mobil 1 Full Synth and M1-113 filter. What a difference in the engine, runs a lot smoother and I can hardly tell when the ECO mode kicks in.:)

Wondering now if changing the transmission and axles to full synth would also make any difference.

TomR
 

hemihustlin

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@ rocket: amsoil ss is the top of the line 1 year 25k oil (normal service lol, read the fine print and almost everybody fall in the severe service category which is like 10 or 15 k miles

I just changed my oil on my 2013 Express, 7,012 miles to Mobil 1 Full Synth and M1-113 filter. What a difference in the engine, runs a lot smoother and I can hardly tell when the ECO mode kicks in.:)

Wondering now if changing the transmission and axles to full synth would also make any difference.

TomR

The transmission oil is already syn. I would leave it in untill it needs to be changed then you could go with something like redline atf+4, if you had a 6 speed.
If you have the 8 speed im pretty sure they are "sealed for life" and i wouldnt touch it.

Gear oil is probably conventional but good quality. Again i would leave it in untill it is due to be changed.
You could change it right away if you want, but with the little milage you have it seems wasteful. Unless you see obvious signs of contamination when checking the fluid.
 

rocket

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I just changed my oil on my 2013 Express, 7,012 miles to Mobil 1 Full Synth and M1-113 filter. What a difference in the engine, runs a lot smoother and I can hardly tell when the ECO mode kicks in.:)

Wondering now if changing the transmission and axles to full synth would also make any difference.

TomR

my rear pinion seal started leaking 20k miles after I did the change......take it for what its worth
 

smiley

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I agree mostly but rear axle is almost certainly synthetic the front could be either. This could have changed but that was the manual read from what I could tell.


$miley
 

rocket

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I agree mostly but rear axle is almost certainly synthetic the front could be either. This could have changed but that was the manual read from what I could tell.


$miley

I really think it was just it's time......not out of the area of impossible
 

dtru1222

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what is this signature series you speak of??

They have the original, XL and SS types of most weights. I went on the "bob is the oil guy" forums and saw some oil analysis sheets that showed that the SS has a higher moly count than the XL so I switched over.
 

rocket

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They have the original, XL and SS types of most weights. I went on the "bob is the oil guy" forums and saw some oil analysis sheets that showed that the SS has a higher moly count than the XL so I switched over.

gotcha ...amsoil product. my only observation would be, if the original was so great.....how did /could they improve upon it?...no hate here.....a million drag racers can't be wrong.
 

dtru1222

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gotcha ...amsoil product. my only observation would be, if the original was so great.....how did /could they improve upon it?...no hate here.....a million drag racers can't be wrong.

Sorry if I didnt explain it that well.

The OE I think its called is the cheaper 3k mile change oil. The XL is the extended life and the SS has an even longer life. I was using the XL as it was a full synthetic and didnt think I needed the SS until I read the SRT engineers statement about the moly.

Looking around, there arent that many brands that actually have a high moly count or that even meet the count of the SRT brand oil.
 

hemihustlin

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SRT brand oil being pennzoil ultra 0w40, in case anyone was wondering.
 

AOFA

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3.0 Diesel Synthetic oil?

So the price in Canada for the oil Dodge recommends for the 3.0 diesel is $15.00/L from the dealership (Pennzoil Euro). I found LIQUI-MOLY 5-30 (A German Full synthetic oil) that meets all the requirements. Does anyone know anything about this oil? It is still expensive, but I can get it out of the states for considerably cheaper. about $8.00/L USD.
 
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smiley

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Ouch.
 

Burla

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So the price in Canada for the oil Dodge recommends for the 3.0 diesel is $15.00/L from the dealership (Pennzoil Euro). I found LIQUI-MOLY 5-30 (A German Full synthetic oil) that meets all the requirements. Does anyone know anything about this oil? It is still expensive, but I can get it out of the states for considerably cheaper. about $8.00/L USD.

That oil gets no love in the oil forums. The VOA's and UOA's are literally all over the boards on the MOLY content, lol. Most are zero, yes zero ppm, but others are under 20ppm and a couple are between 200 and 300ppm. If you ask me that is a problem for someone who names their oil after Moly.

They also use Moly in suspension in a different product. So if it was me and I really wanted to try this stuff i would do TWO things, one buy one quart first and try pouring the contents out and look at the bottom of the oil container for any solids. There probably isn't any, but if there are I would avoid the product. the second thing I would do is do a couple of UOA's on the product after being in my engine for 5k miles and make sure to include TBN.

That oil is real popular in the VW and Audi market, but isn't even on the radar with the American makes market and most oil guys just don't bother with it. It could be great oil for all I know, but because the info is so all over the board, I would proceed with caution.
 

AOFA

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For sure, Thanks for the info.
The NAPA guy said a lot of BMW clientele come in to buy it. I will do some research.
 

Burla

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Yeah I would bet any German make may have a following with this product since it is a German product. I have to say I never seen an oil company with this many fluctuations with their oil, weird. Search "VOA LIQUI-MOLY 5-30" and "UOA LIQUI-MOLY 5-30" and look at all of the info even different oil weights and you will see not 2 look alike.
 

rocket

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So the price in Canada for the oil Dodge recommends for the 3.0 diesel is $15.00/L from the dealership (Pennzoil Euro). I found LIQUI-MOLY 5-30 (A German Full synthetic oil) that meets all the requirements. Does anyone know anything about this oil? It is still expensive, but I can get it out of the states for considerably cheaper. about $8.00/L USD.

isn't chrysler owned in some way to daimler? Which is part of mercedes makeup? I would get it, as long as it shows the correct api rating you should be good to go.
 

smiley

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isn't chrysler owned in some way to daimler? Which is part of mercedes makeup? I would get it, as long as it shows the correct api rating you should be good to go.
Not anymore they sold off their stake in Chrysler a couple years ago when bailout stuff all went down.
 
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