Watch this video, then you'll know why you should use what's on the cap. Great presentation that has been mentioned before.
http://youtu.be/0B6SHa4qv60
http://youtu.be/0B6SHa4qv60
5w30 in 2015 Silverado 5.3L ?
- Thread starter Realtech214
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The big deal is to keep the AFM screen clear or your cam/lifters will go away. Do not use extended oil intervals. Get the highest detergency you can find that meets MFS specs. It ain't the bottom end that will fail ...
All the AFM issues are over now anyway. Some of them even had bad oil pumps. It was a terrible thing but it's over now.
At least for the buyers of pickup trucks. Extremely low volume vehicles like our service vans were made with bad AFM parts all the way out to 2013 and very early 2014!
At least for the buyers of pickup trucks. Extremely low volume vehicles like our service vans were made with bad AFM parts all the way out to 2013 and very early 2014!
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
5W30 works fine in -20f, -40f for prolonged amounts of time they recommend 0W30.
I wouldn't go thinner than 5w30 unless I was at -20F.
5W30 works fine in -20f, -40f for prolonged amounts of time they recommend 0W30.
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Originally Posted By: kschachn
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
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A 5w30 or 0w30 will work perfectly fine in a 2015 5.3L but I'd suggest sticking to the manufacturer's recommendation for warranty purposes. If you're out of warranty or just don't care, knock yourself out with the 30 weights. It'll work perfect either way.
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Originally Posted By: Brigadier
Originally Posted By: kschachn
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
Can you show proof of other weights in owners manuals for different countrys? I cant find anything, thanks.
Originally Posted By: kschachn
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
Can you show proof of other weights in owners manuals for different countrys? I cant find anything, thanks.
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
Originally Posted By: HTSS_TR
During warranty use spec'ed oil in owner manual, after warranty you can use slightly thicker oil since you're in Florida, especially if you tow something in summer months.
However 10s of thousands(perhaps millions) use 0-20 in Florida and all all across the south into the deserts of the the south west with no problems at all in the newer Chevy's.
During warranty use spec'ed oil in owner manual, after warranty you can use slightly thicker oil since you're in Florida, especially if you tow something in summer months.
However 10s of thousands(perhaps millions) use 0-20 in Florida and all all across the south into the deserts of the the south west with no problems at all in the newer Chevy's.
Originally Posted By: SteveSRT8
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
Originally Posted By: Realtech214
Originally Posted By: SteveSRT8
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
Chances are that the new HD will have an HD spec 6.2.
An LS is an LS. Oil Weight's will be the same.
The 0W20 spec is to appease CAFE.
Originally Posted By: SteveSRT8
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
Chances are that the new HD will have an HD spec 6.2.
An LS is an LS. Oil Weight's will be the same.
The 0W20 spec is to appease CAFE.
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There has been a continued speculation that the HD's will get the 6.2. Not convinced. 1) GM's primary customer for the HD's is commercial users by a 3 to 1 margin, and the same ratio holds for commercial buyers of 6.0L gassers to 6.6L Dmaxes. The 6.0L rules the roost. 2) No commercial user is going to buy a engine that requires premium fuel like the 6.2L Ecotec does. 3) The 6.2L doesn't have anywhere near the durability and reliability track record of the 6.0L L96 Vortec. 4) Commercial users demand durability and reliability. 5) If GM disses it's commercial users by playing games with motors, they could lose a large chunk of buyers that would take years to recover, if at all. This and more is why GM has yet to put the 6.2L in the HD pickups. Now, they might have something like a 7.0L in R&D now, as has been speculated, that will have DI, but will still be a flex fuel variety and not require premium fuel. The 6.2L could be derated to run on lowest grade gasoline and be flex fuel, but that would put it in the same power and torque range of the 6.0L now, without the reliability and durability track record. Hence no benefit and the 6.0L L96 is one stout engine that has proven itself. It is not uncommon for 6.0L engines to rack up 300K or more miles without major repairs. From purely a business standpoint, GM has figured out that keeping the 6.0L in the HD pickups works. They are not going to fool with success to satisfy a few private users. At least not with the 6.2L Ecotec. Maybe something else that we don't know about yet.
I would stick with the recommended viscosity. That is the best viscosity for the vehicle. See the link I posed earlier of a GM tribology video. She makes a very persuasive case for using the appropriate, recommended viscosity.
Originally Posted By: Realtech214
Originally Posted By: SteveSRT8
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
The engines are not as different as the hype would have you believe. You simply drank the kool aid. 20W is spec'd for CAFE reasons only despite the impressive amount of justification you bought.
I run the spec oil in a Hemi I own as well. 20W works fine. But the same engine is spec'd for up to 40W based on APPLICATION. That's the key word, how it is used.
Originally Posted By: SteveSRT8
Just check the 3500 models. Ours call for 5w30 yet have the same engine...
The 2500 and 3500 do not use the same engines. They have either a "older school" 6.0L Vortech or the duramax 6.6L
The 1500s have the brand new redesigned ecotec engines, 4.3 5.3 6.2
The engines are not as different as the hype would have you believe. You simply drank the kool aid. 20W is spec'd for CAFE reasons only despite the impressive amount of justification you bought.
I run the spec oil in a Hemi I own as well. 20W works fine. But the same engine is spec'd for up to 40W based on APPLICATION. That's the key word, how it is used.
Originally Posted By: TiredTrucker
There has been a continued speculation that the HD's will get the 6.2. Not convinced. 1) GM's primary customer for the HD's is commercial users by a 3 to 1 margin, and the same ratio holds for commercial buyers of 6.0L gassers to 6.6L Dmaxes. The 6.0L rules the roost. 2) No commercial user is going to buy a engine that requires premium fuel like the 6.2L Ecotec does. 3) The 6.2L doesn't have anywhere near the durability and reliability track record of the 6.0L L96 Vortec. 4) Commercial users demand durability and reliability. 5) If GM disses it's commercial users by playing games with motors, they could lose a large chunk of buyers that would take years to recover, if at all. This and more is why GM has yet to put the 6.2L in the HD pickups. Now, they might have something like a 7.0L in R&D now, as has been speculated, that will have DI, but will still be a flex fuel variety and not require premium fuel. The 6.2L could be derated to run on lowest grade gasoline and be flex fuel, but that would put it in the same power and torque range of the 6.0L now, without the reliability and durability track record. Hence no benefit and the 6.0L L96 is one stout engine that has proven itself. It is not uncommon for 6.0L engines to rack up 300K or more miles without major repairs. From purely a business standpoint, GM has figured out that keeping the 6.0L in the HD pickups works. They are not going to fool with success to satisfy a few private users. At least not with the 6.2L Ecotec. Maybe something else that we don't know about yet.
In our fleet they routinely break 300k miles. Amazingly durable with only minimum care...
There has been a continued speculation that the HD's will get the 6.2. Not convinced. 1) GM's primary customer for the HD's is commercial users by a 3 to 1 margin, and the same ratio holds for commercial buyers of 6.0L gassers to 6.6L Dmaxes. The 6.0L rules the roost. 2) No commercial user is going to buy a engine that requires premium fuel like the 6.2L Ecotec does. 3) The 6.2L doesn't have anywhere near the durability and reliability track record of the 6.0L L96 Vortec. 4) Commercial users demand durability and reliability. 5) If GM disses it's commercial users by playing games with motors, they could lose a large chunk of buyers that would take years to recover, if at all. This and more is why GM has yet to put the 6.2L in the HD pickups. Now, they might have something like a 7.0L in R&D now, as has been speculated, that will have DI, but will still be a flex fuel variety and not require premium fuel. The 6.2L could be derated to run on lowest grade gasoline and be flex fuel, but that would put it in the same power and torque range of the 6.0L now, without the reliability and durability track record. Hence no benefit and the 6.0L L96 is one stout engine that has proven itself. It is not uncommon for 6.0L engines to rack up 300K or more miles without major repairs. From purely a business standpoint, GM has figured out that keeping the 6.0L in the HD pickups works. They are not going to fool with success to satisfy a few private users. At least not with the 6.2L Ecotec. Maybe something else that we don't know about yet.
In our fleet they routinely break 300k miles. Amazingly durable with only minimum care...
I would use 5w20, but now issues using 5w30 in it. My 04 silverado has 10w30 in it at 186K miles, runs smoothly
Originally Posted By: barkingspider
I would use 5w20, but now issues using 5w30 in it. My 04 silverado has 10w30 in it at 186K miles, runs smoothly
Different vehicle. I don't know about current GM trucks, my Ram with C.C. set at 75MPH the engine revs under 2K RPM's and rarely does the oil temp get above 220F so under said conditions I see no issues using a 20 grade.
I would use 5w20, but now issues using 5w30 in it. My 04 silverado has 10w30 in it at 186K miles, runs smoothly
Different vehicle. I don't know about current GM trucks, my Ram with C.C. set at 75MPH the engine revs under 2K RPM's and rarely does the oil temp get above 220F so under said conditions I see no issues using a 20 grade.
Originally Posted By: Realtech214
Originally Posted By: Brigadier
Originally Posted By: kschachn
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
Can you show proof of other weights in owners manuals for different countrys? I cant find anything, thanks.
My wife's 2013 Mazda 3 2.0 Skyactiv manual says to use 0W-20 GF-4/GF-5 in USA/Canada;, or 5W-20 SM or 5w30 SM oil in Mexico. Same car, same engine.
Originally Posted By: Brigadier
Originally Posted By: kschachn
Originally Posted By: Brigadier
It's your truck. It depends on how long you want to keep it.
GM only cares about CAFE fine$$ and keeping your engine running until the warranty expires.
So you are saying there is some sort of indication somewhere that using a 5w30 instead of a 0W/5W-20 will give you a longer engine life? Or do you mean that you just think it will?
Based on owner's manuals I have seen that spec heavier oils for the same engine for different countries that DON'T have CAFE standards........YMMV
But like I said, it is his truck, he can do what he wants. If he wants to eek out that extra .001 MPG using 20W, go for it.
Can you show proof of other weights in owners manuals for different countrys? I cant find anything, thanks.
My wife's 2013 Mazda 3 2.0 Skyactiv manual says to use 0W-20 GF-4/GF-5 in USA/Canada;, or 5W-20 SM or 5w30 SM oil in Mexico. Same car, same engine.
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