A warranty is only as good as the conditions attached to it — and Tracy Lewis Performance is upfront about what this one requires. Here's exactly what's covered, what voids it, and why.
The Warranty, Plainly Stated
This LFX 3.6 long block carries a 6-month warranty, conditional on two things: following the break-in instructions Tracy Lewis Performance provides with the engine, and using only 5W-50 premium full synthetic oil afterward. If either condition isn't met, the warranty is void.
Why the Break-In Procedure Matters
Any new engine needs a proper break-in period to seat components correctly before it's driven normally. Tracy Lewis Performance provides a documented break-in procedure with every engine — follow it exactly as written. This isn't a formality; it's the condition that keeps your warranty valid.
Why 5W-50 Full Synthetic, Specifically
After break-in, the warranty requires 5W-50 premium full synthetic oil going forward — not a different weight, and not a conventional or blend oil. Using anything other than what's specified voids coverage, so if you're unsure whether your usual oil qualifies, confirm with Tracy Lewis Performance before your first oil change.
What Voids the Warranty
Two things void it: skipping or deviating from the provided break-in procedure, or using any oil other than 5W-50 premium full synthetic after break-in. Outside of those two conditions, the warranty covers the engine for 6 months from purchase.
How This Compares to Other Sellers
Some rebuilt or remanufactured engines advertise longer warranty windows — a year or more — but often without spelling out what would void that coverage. Tracy Lewis Performance's 6-month window is shorter, but the conditions are disclosed clearly rather than buried: follow the break-in procedure, run the specified oil, and you're covered. See new vs. used vs. rebuilt for the fuller comparison.
Frequently Asked Questions
How long is the warranty?
6 months from purchase.
What voids the warranty?
Not following the provided break-in procedure, or using any oil other than 5W-50 premium full synthetic after break-in.
Where do I find the break-in procedure?
Tracy Lewis Performance provides a documented break-in procedure with the engine — follow it exactly.
Can I use synthetic-blend oil instead of full synthetic?
No — the warranty specifically requires 5W-50 premium full synthetic oil after break-in. Anything else voids coverage.
Does the warranty cover parts not included with the long block, like the intake manifold?
The warranty applies to the long block as sold. See what's included for exactly what that covers.