gedakbx
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Looking to buy a used 1500 is there any issues with the 6.2 engine
thanks
thanks
Any issues with a 6.2 GM
- Thread starter gedakbx
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I have a 2018 with 15,000K, when i first got it, it chucked a lot of black on start up.
Took it in and specified that I run premium only. They tuned it up and zero issues
Took it in and specified that I run premium only. They tuned it up and zero issues
MK4TDI
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Some of the 15's and 16's liked to drop valves on #7 due to AFM
Cat401
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I had an '11..it got better fuel mileage than my previous 2008 with a 5.3L ....ran great with no issues....sold it to a friend...still running ....currently has over 400,000 km
my daily driver is a 15' with 165,000 km, 8 spd trans....runs great....however GM put in a complete new engine at 100,000 due to stuck valve due to AFM...warranty replaced
I have an 18' with approx 11,000 km....no issues
My son has an 18' also....I think he has 80 or 90k....no issues except
my daily driver is a 15' with 165,000 km, 8 spd trans....runs great....however GM put in a complete new engine at 100,000 due to stuck valve due to AFM...warranty replaced
I have an 18' with approx 11,000 km....no issues
My son has an 18' also....I think he has 80 or 90k....no issues except
Bnorth
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I think they can be a bit hard on back tires
pfi572
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6.2 are awesome, have had 6 of them and all good .
Just up the viscosity of oil in motor to 5-30 instead of the 5-20 is all I have ever done and full synthetic but don’t think that’s required .
Oil changes at 8000 kms ish .
Just up the viscosity of oil in motor to 5-30 instead of the 5-20 is all I have ever done and full synthetic but don’t think that’s required .
Oil changes at 8000 kms ish .
NoBrakes!
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sitruc1978
Active member
I've had two Silverados with 6.2L engines with no problems, traded the first one (2015) @ 120,000 km and the second one (2018) currently has 50,000 km. The second one had a vibration in the transmission @ highway speeds and it took a few months to fix, tried to flush a few times, replaced the valve body and couple other parts and eventually GM released a new fluid (and equipment to flush the transmission) which fixed the problem.
sitruc1978
Active member
20% higher over what?
pfi572
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Yeh over what ? They all burn fuel and these are easy in fuel .
pfi572
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Last edited:
pfi572
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Exactly, I ran 91 most of the time just for what you have commented on .
Pulling I would recommend it but not required like the boat packaged 6.2
Over any non-premium fueled vehicle. What other engine requires premium?
pfi572
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It’s not premium fueled . Only if you so choose to .
That is incorrect. This is directly out of the 2020 GM 1500 manual.
Recommended Fuel (6.2LV8 Engine)Premium unleaded gasolinemeeting ASTM specification D4814with a posted octane rating of 93 —(R+M)/2 — is highly recommendedfor best performance and fueleconomy. Unleaded gasoline withan octane rated as low as 87 can beused. Using unleaded gasolinerated below 93 octane, however, willlead to reduced acceleration andfuel economy. If knocking occurs,use a gasoline rated at 93 octaneas soon as possible, otherwise, theengine could be damaged. If heavyknocking is heard when usinggasoline with a 93 octane rating, theengine needs service.
pfi572
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It’s not incorrect for anything before 2020 as they have changed it obviously as what I posted was from GM themselves as well .
Even what you posted ? Says recommended and 87 can be used ?!!!
Even what you posted ? Says recommended and 87 can be used ?!!!
neilsleder
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Yah the computer is smart enough to cut back on timing and power so the 87 would do just fine.
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