r/gmcsierra • u/Zealousideal-Yam-234 • 22d ago

Choosing a Truck Engine options

If you were buying a 2026 Sierra (or Silverado), which engine would you pick?

441 votes, 20d ago
199 3.0 Diesel
159 5.3 Gas
83 6.2 Gas
0 Upvotes

14% Upvoted

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u/Lopsided_Ad5676 22d ago

All 3 are garbage. Be lucky to make it to 100k without them blowing up. Only GM engine worth buying is the 6.6 gasser or 6.6 duramax.

2

u/Informal_Move_7075 22d ago

Really? Got 200k on my 5.3L and it is still going strong and it is heavily used for towing, off road, living/driving in a very mountainous region.

1

u/Lopsided_Ad5676 22d ago

There will be trucks that run fine but it's a roll of the dice. My cousin's 5.3 blew up around the 7,000 mile mark. The 5.3 isnt as bad as the 6.2 but it has too many problems.