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- Apr 28, 2012
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- Ram Year
- 2010 Hemi Reg Cab 4x4
- Engine
- Hemi
Does anyone know if there is an atsm for stay in grade viscosity and if so the number?
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LOL ok so the Amsoil 5w30 was the old SN formula which had less moly than the 0w40 Amsoil which was the new SP formula. So I'm assuming thats the difference?So 0w20 valvoline works, so did 0w40 amsoil, but 5w30 amsoil was the worst tick oil? I freaking surrender, lol. I got nothing. All I got was maybe the engine needed a break in that is recieved over the last decade, so now just maybe even 5w20 pp wouldnt tick as bad? It's either that or it's the moly., so looking forward to hearing how it goes. 4k miles oci? I'm sure first tow trip this summer you will have some thicker oil.
For that to be true the theory would have to be gf-5 had more timing wear then gf-6. So the timing wear "issue" that postponed gf-6 for so long I personally thought was specific to the new gf-6 formula and nothing to do with gf-5 lacking in this area. I however would be thrilled if that is wrong thinking, I just don't know. Anyone have more info on this? I had a hard time looking up those circle graphs for when api formulas advance, that might tell us if true. Example, you can see dexos graphs with each formula advancement. I dont see a specific "timing chain wear" spot for dexos. Look at gf-6 on wear, we need to see a graph like this with gf-5, the other day I couldnt find one easily. Interesting dexos is above gf-6 in this area. I cant imagine they would release an oil worse in one catgory for the next spec, but they might change the rules to make it pass, who knows on that.I think the added timing chain wear requirements for SP may be helping our tick? Just throwing ideas because I legit have no explanation otherwise
I know this isn't necessarily the same comparison, however, I had a 2006 SRT 300C with the 6.1 and with the OEM recommended 0W40 synthetic oil I used there was a pretty defined whine, like that of a supercharger, caused by the oil squirters.Ive read on the facebook groups of people having positive experiences with running rotella 15w40 so i would assume you would be fine with HPL 15w40. Cant comment on the 5w50 though.
It looks like mobil has reformulated FS 0w40. More pao, higher viscosity now 13.5 vs i think 12.9? Slight change. Api SP now so im assuming a calcium/magnesium detergent package. Havnt seen it in the wild yet0w40 is basically 5w30 when talking about otc 0w40's. you have to ask why manu's didnt spec 5w40 or even 15w40, in theory all 3 should be in the same range while operating. Manu's have designed modern 0w40 to be 5w30's, been discussed here quite a bit.
20 | 6.9 | <9.3 |
30 | 9.3 | <12.5 |
40 | 12.5 | <16.3 |
50 | 16.3 | <21.9 |
I wonder what formula is the one that we get here. Mobil1 0w40 is one of the common ones that are always kn stock here.It looks like mobil has reformulated FS 0w40. More pao, higher viscosity now 13.5 vs i think 12.9? Slight change. Api SP now so im assuming a calcium/magnesium detergent package. Havnt seen it in the wild yet
The m1 FS 0w40 is the same product world wide. It is loaded with european approvals and it will do the job just fine as it still has the a40 porsche approval. If anything it got better as it usually does. That same oil is run in 24hr endurance races around the world. IMO its mobils finest motor oilI wonder what formula is the one that we get here. Mobil1 0w40 is one of the common ones that are always kn stock here.
Not knowing the proper formula, I would be hesitant to recommend it to someone facing the tick. Right now, my answer advise to any HEMI user here in Dubai would be to run Redline 5w40 for two oil changes at short intervals and then Redline 5w30 from thereafter.
As for me, I'm experimenting... So I will be using HPL 15w40 for now and then HPL 5w30 during the cold weather and in the hot summer months, I will choose to run HPL 15w40 or Redline 10w40.
I would wait till someone has done a uoa on this new m1 before I would take the plunge into using it on my truck. In addition, I need to know how to spot that I'm buying the right one. For all I know dealers here may try to pass off the old stock rather than the new one.The m1 FS 0w40 is the same product world wide. It is loaded with european approvals and it will do the job just fine as it still has the a40 porsche approval. If anything it got better as it usually does. That same oil is run in 24hr endurance races around the world. IMO its mobils finest motor oil
Amsoil MCV is also fine for H-D. Where Redline Shockproof is a "must" is the trans.I did some Harley engine re-building over the winter, so looking at another oil change sooner than later.
Geezus! Red Line V-Twin 20W-50 went up from mid $16 / quart to near $20!!!
Amsoil MCV is also fine for H-D. Where Redline Shockproof is a "must" is the trans.