Just wanted to know if anyone is running Xw30's in the new 2014-current ecotec 5.3 chevrolet engines. Any difference noticed?
5w30 in 2015 Silverado 5.3L ?
- Thread starter Realtech214
- Start date
- Status
Originally Posted By: Realtech214
Just wanted to know if anyone is running Xw30's in the new 2014-current ecotec 5.3 chevrolet engines. Any difference noticed?
What's the factory specification...0w20 right? Don't own a Chevy, but in the F150 specified for 5w20 I'm running 5w30 with no difference that I can tell.
Just wanted to know if anyone is running Xw30's in the new 2014-current ecotec 5.3 chevrolet engines. Any difference noticed?
What's the factory specification...0w20 right? Don't own a Chevy, but in the F150 specified for 5w20 I'm running 5w30 with no difference that I can tell.
Oil fill caps often list a compromise between marketing/govt CAFE standards/and the input of design engineers. My 2002 was back spec'd to 5w-20 due to CAFE. I use a higher grade than on the fill cap because that's what the engineers originally designed and spec'd from 1992-2000. The fill cap on my old 1997 with the identical 4.6L engine, was labeled for 5w30. I got 230K miles on that engine/car using 5w30. Use what makes sense based on various factors....not the writing on the oil fill cap.
You're in Florida too. So that already might push the most desired oil in your engine to a thicker grade than "recommended" for the entire county. You don't live in North Dakota.
You're in Florida too. So that already might push the most desired oil in your engine to a thicker grade than "recommended" for the entire county. You don't live in North Dakota.
What does GM spec for the same engine in Mexico or Australia? That would be more like South Florida service.
Last edited:
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.
Well the new 15' and 16' GM trucks, Tahoes,Suburbans I service get Full Synthetic ECO ULTRA 0w20
Almost 64,000 on my 2014 Sierra 5.3 and I have ran nothing but 0W-20. used oil analysis look fine. These engines have an external engine oil cooler. I rarely see oil temps above 220°F (even at the height of summer and pulling my 18 ft aluminum boat). I would just stick with a Dexos1 approved 0W-20. Mobil is currently offering $12 rebates on 5 qt jugs of M1.
I wouldn't go thinner than 5w30 unless I was at -20F.
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
Originally Posted By: oldmaninsc
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
He might not, but, common sense sure goes a long way sometimes. Just sayin'.........
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
He might not, but, common sense sure goes a long way sometimes. Just sayin'.........
My father in law is anti technology to say the least so he,wants to run 10w30 in a 5.3 liter 2015 Silverado when it calls for 0w20. I told him to run what is required for warranty but thinks he knows more than the engineers. Smn
WiskyBadger
Site Donor 2025
Use a 0w20 and forget about it
Originally Posted By: ChevyBadger
Use a 0w20 and forget about it
Or, use this.
Use a 0w20 and forget about it
Or, use this.
Originally Posted By: BlueOvalFitter
Originally Posted By: oldmaninsc
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
He might not, but, common sense sure goes a long way sometimes. Just sayin'.........
"Common Sense" trumps all the testing that a big corporation does? I get it!
Actually my point wasn't who is right or wrong about what oil to use, but that Merk usually spouts his 10w30 gospel, and states all other "thin" stuff will kill your engine.
Originally Posted By: oldmaninsc
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
Why? You know more about oil than GM does? LOL!
He might not, but, common sense sure goes a long way sometimes. Just sayin'.........
"Common Sense" trumps all the testing that a big corporation does? I get it!
Actually my point wasn't who is right or wrong about what oil to use, but that Merk usually spouts his 10w30 gospel, and states all other "thin" stuff will kill your engine.
Originally Posted By: Merkava_4
I wouldn't go thinner than 5w30 unless I was at -20F.
You sure hate oil with a better cold flow rate LOL. The only thing I have thought about with my 2015 Silverdo is changing from Pennzoil Ultra Platium 5w20 to 5w-20 because it is so much easier to find. My friend has a Ford truck running 0w-20 and he is nearing 300k, no isues
I wouldn't go thinner than 5w30 unless I was at -20F.
You sure hate oil with a better cold flow rate LOL. The only thing I have thought about with my 2015 Silverdo is changing from Pennzoil Ultra Platium 5w20 to 5w-20 because it is so much easier to find. My friend has a Ford truck running 0w-20 and he is nearing 300k, no isues
Really haven't figured out why a 0w20 would be needed except in the most blistering of cold weather. I would side with a 5w20 probably because, in general, it should be more VI stable than 0w20. At least the perception would be that. And given the abuse the oil has to take with the AFM feature on GM's light duty engines, it would seem a 5w20 would provide a slight edge. Just glad I don't have to deal with it with my 2015 2500 6.0L. Those still have recommended XXw30 oils.
Originally Posted By: TiredTrucker
Really haven't figured out why a 0w20 would be needed except in the most blistering of cold weather. I would side with a 5w20 probably because, in general, it should be more VI stable than 0w20. At least the perception would be that. And given the abuse the oil has to take with the AFM feature on GM's light duty engines, it would seem a 5w20 would provide a slight edge. Just glad I don't have to deal with it with my 2015 2500 6.0L. Those still have recommended XXw30 oils.
I emailed Pennzoil about running 5w-20 and they said it should make no difference but I should follow GM's recommendation of course. I asked a tech I trust at the dealership and he said a lot are doing it. 5W-20 is just easier to find.
Really haven't figured out why a 0w20 would be needed except in the most blistering of cold weather. I would side with a 5w20 probably because, in general, it should be more VI stable than 0w20. At least the perception would be that. And given the abuse the oil has to take with the AFM feature on GM's light duty engines, it would seem a 5w20 would provide a slight edge. Just glad I don't have to deal with it with my 2015 2500 6.0L. Those still have recommended XXw30 oils.
I emailed Pennzoil about running 5w-20 and they said it should make no difference but I should follow GM's recommendation of course. I asked a tech I trust at the dealership and he said a lot are doing it. 5W-20 is just easier to find.
- Status
Similar threads
- Locked
