wemay
Site Donor 2023
List your mfr recom'd viscosity
List what you use
Why
List what you use
Why
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Viscosity: Do you go by mfr spec or not?
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530i MFR spec: LL-01, a number of viscosity grades can be used
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
wemay
Site Donor 2023
Originally Posted By: Quattro Pete
530i MFR spec: LL-01, a number of viscosity grades can be used
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
530i MFR spec: LL-01, a number of viscosity grades can be used
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
Originally Posted By: wemay
Originally Posted By: Quattro Pete
530i MFR spec: LL-01, a number of viscosity grades can be used
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
Yes, that is probably true. If you're in spec, you will PROBABLY have an appropriate viscosity too. However, there are some particular engines, like certain AMGs, that want 229.5 plus a 40 weight, so not all of 229.5 options are available on those.
I think all of my cars allow for some variance in viscosity if other requirements are met. If that wasn't the case, I still wouldn't see the need to go outside of what the manufacturer allows/suggests.
Originally Posted By: Quattro Pete
530i MFR spec: LL-01, a number of viscosity grades can be used
C300 MFR spec: MB 229.5, a number of viscosity grades can be used
See sig for what I use.
Why? These are the cheapest oils I can find that still meet the mfg spec.
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
Yes, that is probably true. If you're in spec, you will PROBABLY have an appropriate viscosity too. However, there are some particular engines, like certain AMGs, that want 229.5 plus a 40 weight, so not all of 229.5 options are available on those.
I think all of my cars allow for some variance in viscosity if other requirements are met. If that wasn't the case, I still wouldn't see the need to go outside of what the manufacturer allows/suggests.
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Originally Posted By: wemay
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
For most long life Euro specs, the primary viscosity parameter is HT/HS which needs to be at least 3.5 cP. As such, both thick Xw-30 and Xw-40 grades can qualify.
I would guess that for most Euro brands the specs are more important than Viscosity, correct?
For most long life Euro specs, the primary viscosity parameter is HT/HS which needs to be at least 3.5 cP. As such, both thick Xw-30 and Xw-40 grades can qualify.
Depends on warranty I suppose. While warranty is in effect there is a downside risk to not putting in what the manufacturer wants, but once it is up, it is katie bar the door time!!
But I'm still trying to determine if there isn't any reason 10w-30 from any manufacturer isn't good enough for any normal street car application.
But I'm still trying to determine if there isn't any reason 10w-30 from any manufacturer isn't good enough for any normal street car application.
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All the answers you seek can be found in the billion-page "Post Your Latest Oil Change" but I think I know what you seek.
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why. M1 0W-40 is the reigning king of all PCMO and is most recommended by Mobil the world over.
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why. M1 0W-40 is the reigning king of all PCMO and is most recommended by Mobil the world over.
wemay
Site Donor 2023
Originally Posted By: Oil Changer
All the answers you seek can be found in the billion-page "Post Your Latest Oil Change"
This is the best point i've read in a while. Lol.
All the answers you seek can be found in the billion-page "Post Your Latest Oil Change"
This is the best point i've read in a while. Lol.
Rec: dexos1 5W-30
Used: AC Delco 5W-30 semi-synth
Why: Free (to me) CPO warranty oil changes. Once they're up, who knows? QSUD 5W-30, maybe?
Used: AC Delco 5W-30 semi-synth
Why: Free (to me) CPO warranty oil changes. Once they're up, who knows? QSUD 5W-30, maybe?
Originally Posted By: Oil Changer
All the answers you seek can be found in the billion-page "Post Your Latest Oil Change" but I think I know what you seek.
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why. M1 0W-40 is the reigning king of all PCMO and is most recommended by Mobil the world over.
I too am happy with the 40 grade in my charger. I beat this car now that it's warmer and I've got sticky tires on and I saw oil temps of 265f yesterday while enjoying this cars ability to stick me to my seat.
I'm sure a 20 grade syn if today's quality would handle those temps but just how thick is the oil film,I can't say for sure.
I can say I'm getting 28mpg on the highway now that summer fuel is back so I'm not noticing an mpg hit anyway.
Winter I stick with the prescribed 20 grade in this car because I'm not driving it to the limit,whereas once the tires will stick I'm hard on it.
All the answers you seek can be found in the billion-page "Post Your Latest Oil Change" but I think I know what you seek.
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why. M1 0W-40 is the reigning king of all PCMO and is most recommended by Mobil the world over.
I too am happy with the 40 grade in my charger. I beat this car now that it's warmer and I've got sticky tires on and I saw oil temps of 265f yesterday while enjoying this cars ability to stick me to my seat.
I'm sure a 20 grade syn if today's quality would handle those temps but just how thick is the oil film,I can't say for sure.
I can say I'm getting 28mpg on the highway now that summer fuel is back so I'm not noticing an mpg hit anyway.
Winter I stick with the prescribed 20 grade in this car because I'm not driving it to the limit,whereas once the tires will stick I'm hard on it.
2014 Camry SE 3.5 [Factory recommends 0w20 and 10k OCI.]
I am doing 5k OCI's instead.
Currently: QSUD 5w20.
Next: QSUD5w30.
It gets to 0f in the winter and 100f in the summer here. Yes, I will be running a thicker oil than recommended [summer months] while under warranty. I will go back to 0w20 for next winter.
I am doing 5k OCI's instead.
Currently: QSUD 5w20.
Next: QSUD5w30.
It gets to 0f in the winter and 100f in the summer here. Yes, I will be running a thicker oil than recommended [summer months] while under warranty. I will go back to 0w20 for next winter.
Yes ... and no?
I used RT6 on the Cherokee for a bit ... but realized it's too thick for some cold temperatures. Manufacturer says 5w-30 winter, 10w-30 summer. I'm runnin a 5w/10w/SAE30 mix right now.
Focus - I go back and fourth. Switch between 0w-20 and 5w-20. While 0w-20 is not specifically recommended in the manual, M1 does meet Ford's spec
I used RT6 on the Cherokee for a bit ... but realized it's too thick for some cold temperatures. Manufacturer says 5w-30 winter, 10w-30 summer. I'm runnin a 5w/10w/SAE30 mix right now.
Focus - I go back and fourth. Switch between 0w-20 and 5w-20. While 0w-20 is not specifically recommended in the manual, M1 does meet Ford's spec
With most engines, I use common sense.
When my old BMW was new, the 10W-40 I'm using was too thin per the OM.
With a current spec 10W-40, I think I'm fine.
I'll sometimes go up a grade with any car, for example using 5W-30 in the Focus or '02 Accord rather than the recommended 5W-20.
A new car under warranty gets exactly what the doctor ordered.
With the Forester, this wasn't an issue, since Subaru allows for the use of just about any grade you can imagine.
With the '12 Accord, 0W-20 is the only recommended grade so that's what it gets, at least for now.
None of this probably matters, since engines will do fine on a range of grades and the Euro specs are usually more about allowing for long drains with adequate protection than they are about adequate protection on shorter drains with non-spec oils.
When my old BMW was new, the 10W-40 I'm using was too thin per the OM.
With a current spec 10W-40, I think I'm fine.
I'll sometimes go up a grade with any car, for example using 5W-30 in the Focus or '02 Accord rather than the recommended 5W-20.
A new car under warranty gets exactly what the doctor ordered.
With the Forester, this wasn't an issue, since Subaru allows for the use of just about any grade you can imagine.
With the '12 Accord, 0W-20 is the only recommended grade so that's what it gets, at least for now.
None of this probably matters, since engines will do fine on a range of grades and the Euro specs are usually more about allowing for long drains with adequate protection than they are about adequate protection on shorter drains with non-spec oils.
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I go with the thickest spec per FSM,which is 20W50 for the 1990-1996 Z32.
Originally Posted By: Oil Changer
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why.
Engine feel any different with 0W-40 than 5W-30 ?
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why.
Engine feel any different with 0W-40 than 5W-30 ?
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Smooth as silk and oil pressures read lower on the gauge compared to the PP 5W-30 I drained out; hot and cold readings. Even on the morning initial start, the needle rockets up to ~60 psi which is where it was with the 30-grade.
My routine has me changing the oil in late October. I will have between 10 - 12K on the oil by that time. I planned on putting in 0W-30 AFE for the winter but now I'm not so sure. I'll cross that bridge when I get to it. Knowing me as well as I do, I'll put in the AFE.
Originally Posted By: Merkava_4
Originally Posted By: Oil Changer
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why.
Engine feel any different with 0W-40 than 5W-30 ?
My routine has me changing the oil in late October. I will have between 10 - 12K on the oil by that time. I planned on putting in 0W-30 AFE for the winter but now I'm not so sure. I'll cross that bridge when I get to it. Knowing me as well as I do, I'll put in the AFE.
Originally Posted By: Merkava_4
Originally Posted By: Oil Changer
I recently put M1 0W-40 in a GM calling for 5W-30. I haven't regretted it for a second. No real reason why.
Engine feel any different with 0W-40 than 5W-30 ?
My DD fill cap specs 5w-20. I used 5w-20 during winter, but use 5w-30 non-winter, because I had both grades. Though the manufacturer states 5w-30 okay for towing, high temps etc. So since temps regularly runs triple digit temps, I already have the 5w-30 in use since spring - using PP currently.
Being the shear of 5w-20, maybe my 5w-30 shear may hold closer to the 5w-20 spec by end of OCI - I dunno. Engine is DI.
Other two vehicles I use what specs on the fill cap, one 5w-20 other 5w-30.
Being the shear of 5w-20, maybe my 5w-30 shear may hold closer to the 5w-20 spec by end of OCI - I dunno. Engine is DI.
Other two vehicles I use what specs on the fill cap, one 5w-20 other 5w-30.
I feel like this should be a poll on the front page, with some choices like "always, usually, sometimes, rarely, never".
wemay
Site Donor 2023
Originally Posted By: dparm
I feel like this should be a poll on the front page, with some choices like "always, usually, sometimes, rarely, never".
That would have been a better idea. Just didnt realize i could do that.
I feel like this should be a poll on the front page, with some choices like "always, usually, sometimes, rarely, never".
That would have been a better idea. Just didnt realize i could do that.
Once you've made a change on your car for your driving conditions over a long period how would you ever know the difference, even with oil analysis, that is the difference if you had not made the change?
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