2018 GMC Sierra 1500 vs 2018 Toyota Tundra
Two full-size trucks, compared on what actually matters when you're buying used:
what breaks, when it breaks, and what it costs you.
2018 GMC
Sierra 1500
6/10
Great truck to drive, but the 5.3L/6.2L AFM lifters are a ticking time bomb — know that going in and negotiate accordingly.
VS
2018 Toyota
Tundra
8/10
It'll outlast your mortgage, drink like a frat house, and never once leave you stranded from anything except the airbag light lying to you.
Milo scores the 2018 Toyota Tundra higher — 8/10 against 6/10.
By the numbers
Green is the better number — higher on every score, lower on failures, complaints and recalls.
| GMC Sierra 1500 |
Toyota Tundra |
| Known failure points | 5 | 6 |
| NHTSA complaints | 296 | 99 |
| Safety recalls | 7 | 9 |
| Service bulletins | 12 | 12 |
| Reliability | 55 | 88 |
| Cheap to own | 50 | 72 |
| Fun factor | 62 | 58 |
| Holds value | 68 | 85 |
| Enthusiast cred | 52 | 70 |
The most expensive thing that goes wrong
2018 GMC Sierra 1500
AFM lifter collapse / camshaft damage (5.3L and 6.2L EcoTec3 V8s) causing ticking noise and metal-in-oil
$4,000–$9,00020k–70k mi
2018 Toyota Tundra
Frame rust in northern rust-belt/salt states (less severe than pre-2016 trucks but still a concern on high-mileage examples)
$0–$3,00080k–120k mi
If you buy one, buy this one
✅ 2018 GMC Sierra 1500
2018 Sierra Denali or SLT with the 6.2L L86 V8, Max Trailering Package, and Magnetic Ride Control — the 6.2L's extra output and slightly better reliability track record combined with the adaptive suspension make this the sweet spot.
✅ 2018 Toyota Tundra
2018 Tundra CrewMax TRD Off-Road or 1794 Edition with the 5.7L V8 and 4x4 — the CrewMax's back seat space and the TRD Off-Road's Bilstein shocks/skid plates hit the sweet spot of usability and capability without Platinum pricing.
Narrowed it down? Get the full report
This comparison is model-level.
Milo's report goes car-level — the one you're actually looking at:
- A line-by-line negotiation script
- The pre-purchase inspection checklist
- VIN-specific open recalls
- What it's really worth right now
- Your next 15,000 miles, forecast
- Hidden features & money-savers
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Scores and findings blend documented NHTSA recalls and complaints with
patterns synthesized from owner communities. Always inspect the specific vehicle and
verify open recalls by VIN before buying.