0w20 Good or not
- Thread starter Oildudeny
- Start date
- Status
Patman
Staff member
Old habits die hard, that's why. (and people think they know better than the engineers who built the car, or they claim it's only a CAFE thing, pick your excuse)
Originally Posted By: Oildudeny
If the manufacturer spec calls for 0w20, why is it many BITOG members choose another weight or recommend another weight to be used?
I do it because my manufacturers engineers recommend a different oil in countries not subject to CAFE.
If the manufacturer spec calls for 0w20, why is it many BITOG members choose another weight or recommend another weight to be used?
I do it because my manufacturers engineers recommend a different oil in countries not subject to CAFE.
Last edited:
0w20 is a great oil if that is what is specified for your car. Vehicles have been driven millions upon millions of miles with no mass engine failures reported. Most of the fears here are without basis.
This must be the Friday night thick vs thin thread.
This must be the Friday night thick vs thin thread.
Originally Posted By: PimTac
0w20 is a great oil if that is what is specified for your car. Vehicles have been driven millions upon millions of miles with no mass engine failures reported. Most of the fears here are without basis.
This must be the Friday night thick vs thin thread.
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
0w20 is a great oil if that is what is specified for your car. Vehicles have been driven millions upon millions of miles with no mass engine failures reported. Most of the fears here are without basis.
This must be the Friday night thick vs thin thread.
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
I don't have any vehicles that call for a 20 weight oil, but if I had one that the OEM recommended a 0w20 I would probably opt for 5w20. Much lower NOACK for one. Also, I don't live in Fairbanks, Alaska, so I am not convinced I need to use an oil with that low of a cold flow rating. The OEM couldn't tell the difference between a 0w20 and a 5w20 anyway, so it is a non issue. While CAFE may have something to do with OEM recommendations, I think the recommendation also involves understanding that there is a wide range of climates that the vehicles will be used in N. America, so they recommend a 0w20 to cover all the bases as a one size fits all solution.
Nick1994
$100 site donor 2024
Originally Posted By: Patman
Old habits die hard, that's why. (and people think they know better than the engineers who built the car, or they claim it's only a CAFE thing, pick your excuse)
Don't you refuse to use the 4 cylinder mode in your Corvette?
Old habits die hard, that's why. (and people think they know better than the engineers who built the car, or they claim it's only a CAFE thing, pick your excuse)
Don't you refuse to use the 4 cylinder mode in your Corvette?
Because 0w20 cannot handle TGDI demands.
What kind of car do you have?
What kind of car do you have?
I have put some 460K on my last three Ford engines(2.0, 2.3, 2.5)
with M1 0-20 with outstanding results. I prefer 0-20 because it has kept my engines very clean, show no sign of engine wear, virtually no oil use even in 10K OCIs, outstanding performance in high heat conditions, and in very cold temps. I just purchased a jug of M1 0-20EP today.
with M1 0-20 with outstanding results. I prefer 0-20 because it has kept my engines very clean, show no sign of engine wear, virtually no oil use even in 10K OCIs, outstanding performance in high heat conditions, and in very cold temps. I just purchased a jug of M1 0-20EP today.
Last edited:
Originally Posted By: spasm3
Originally Posted By: PimTac
0w20 is a great oil if that is what is specified for your car. Vehicles have been driven millions upon millions of miles with no mass engine failures reported. Most of the fears here are without basis.
This must be the Friday night thick vs thin thread.
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Kia and Hyundai 2.4 And 2.0 GDI engine’s drop like flies. Connecting rod bearing failures. They specify 5w-20 on the oil cap. When Kia sends you a replacement 2.4 or 2.0 long block, you better use the Mobil 5w30 Kia supplied to fill the sump or the warranty claim won’t be paid. Coincidence?
NOPE
Originally Posted By: PimTac
0w20 is a great oil if that is what is specified for your car. Vehicles have been driven millions upon millions of miles with no mass engine failures reported. Most of the fears here are without basis.
This must be the Friday night thick vs thin thread.
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Kia and Hyundai 2.4 And 2.0 GDI engine’s drop like flies. Connecting rod bearing failures. They specify 5w-20 on the oil cap. When Kia sends you a replacement 2.4 or 2.0 long block, you better use the Mobil 5w30 Kia supplied to fill the sump or the warranty claim won’t be paid. Coincidence?
NOPE
- Joined
- Sep 26, 2010
- Messages
- 9,837
I ran xW-20 in my 2010 FX4 for the whole 158K miles I owned it. I towed 8-9K pounds at least 45% of those miles in the mountains and in heat up to 117°F.
I also ran extended OCIs up to 17K miles. I UOA'ed every fluid change (motor, transmission, transfer case, axles, and power steering); ALL of them were normal--you can search for the spreadsheet.
Lots of smack talked on this site about xW-20, but no one has brought forth anything to show it is inferior in any way.
I also ran extended OCIs up to 17K miles. I UOA'ed every fluid change (motor, transmission, transfer case, axles, and power steering); ALL of them were normal--you can search for the spreadsheet.
Lots of smack talked on this site about xW-20, but no one has brought forth anything to show it is inferior in any way.
Originally Posted By: spasm3
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Is that why Toyota specifies 0W-16 in its GDI engines?
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Is that why Toyota specifies 0W-16 in its GDI engines?
Originally Posted By: Gokhan
Originally Posted By: spasm3
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Is that why Toyota specifies 0W-16 in its GDI engines?
Is "what" why they specify 0w-16? I don't get your question. I'm sure the reason is CAFE and they have tested that it will go through the warranty period fine.
Originally Posted By: spasm3
I don't fear the oil. I think in a MPFI engine designd for it, its fine. What scares me is a DI engine with 0w20.
Is that why Toyota specifies 0W-16 in its GDI engines?
Is "what" why they specify 0w-16? I don't get your question. I'm sure the reason is CAFE and they have tested that it will go through the warranty period fine.
Originally Posted By: PimTac
Yep, all the thickies are out in force.
yes!
Lowest I go will be 5Wx30. 5W is good down to -22°F I think ... the lowest we typically see is +20°F if ever!
old days we used to use 10Wx40. I also like 10Wx30. My truck is speced 0Wx20. When free oil change was over, the car got a thicker d1g2 5Wx30 and may even move up to thinner 10Wx30
Yep, all the thickies are out in force.
Lowest I go will be 5Wx30. 5W is good down to -22°F I think ... the lowest we typically see is +20°F if ever!
old days we used to use 10Wx40. I also like 10Wx30. My truck is speced 0Wx20. When free oil change was over, the car got a thicker d1g2 5Wx30 and may even move up to thinner 10Wx30
Originally Posted By: spasm3
Originally Posted By: Oildudeny
If the manufacturer spec calls for 0w20, why is it many BITOG members choose another weight or recommend another weight to be used?
I do it because my manufacturers engineers recommend a different oil in countries not subject to CAFE.
This.
But to be fair to the thinnies, there was posted a chart created by Honda which showed the average power usage in the US, and it was WELL below Autobahn power usage, so a 20 weight is sufficient in most cases in the US whereas German autos with the same engine specified a 40.
To be fair to the "thickies" there was a post awhile back where the member was in the Middle East, and had an oil temperature gauge on his otherwise stock vehicle in normal daily driving. When the ambient temp was 130°F(55°C), his oil temps got to the point (IIRC around 300°F) where a 20 would thin so much it would NOT protect the engine, and a 40 or 50 grade oil was required to maintain adequate film strength. I'll try to find the reference.
Although I'm a "thickie", I believe the lighter weight oils are fine for mom's grocery getter and soccer hauler. Ford recommends 5w50 for track pack Mustangs on the track, where oil temps are higher, for a reason.
Despite the denials of the thinnies, CAFE does in fact play a part in the development of thinner motor oils, but it isn't the only reason for them.
Originally Posted By: Oildudeny
If the manufacturer spec calls for 0w20, why is it many BITOG members choose another weight or recommend another weight to be used?
I do it because my manufacturers engineers recommend a different oil in countries not subject to CAFE.
This.
But to be fair to the thinnies, there was posted a chart created by Honda which showed the average power usage in the US, and it was WELL below Autobahn power usage, so a 20 weight is sufficient in most cases in the US whereas German autos with the same engine specified a 40.
To be fair to the "thickies" there was a post awhile back where the member was in the Middle East, and had an oil temperature gauge on his otherwise stock vehicle in normal daily driving. When the ambient temp was 130°F(55°C), his oil temps got to the point (IIRC around 300°F) where a 20 would thin so much it would NOT protect the engine, and a 40 or 50 grade oil was required to maintain adequate film strength. I'll try to find the reference.
Although I'm a "thickie", I believe the lighter weight oils are fine for mom's grocery getter and soccer hauler. Ford recommends 5w50 for track pack Mustangs on the track, where oil temps are higher, for a reason.
Despite the denials of the thinnies, CAFE does in fact play a part in the development of thinner motor oils, but it isn't the only reason for them.
- Status
Similar threads
- Locked
- Locked
