Fluid Types
Mercon LV Transmission Fluid: What It Is & Uses
Mercon LV is a Ford low-viscosity transmission fluid specification. Check your exact year, engine, and transmission before choosing it or another Mercon fluid.
Quick answer
Mercon LV is Ford's low-viscosity transmission fluid specification. Do not assume a Ford, Lincoln, or Mercury requires it based on brand or age. Check the owner's manual for your exact model year, engine, and transmission, and use its specified fluid. Do not substitute Mercon V, Mercon ULV, or another specification unless the manufacturer approves it for that application.
Updated October 24, 2026 · 4 min read
Before buying Mercon LV, confirm that the owner's manual specifies it for your exact vehicle and transmission.
What Mercon LV is
Mercon LV is a Ford transmission fluid specification; "LV" stands for low viscosity. The name alone does not establish compatibility with a particular transmission.
Which vehicles use it
Check the fluid table in the owner's manual for your model year, engine, and transmission. Do not treat Mercon LV as the default for all Ford, Lincoln, or Mercury automatics.
The Ford Explorer guide and Ford F-150 guide collect model-year manual references. Use them to locate the applicable documentation, then confirm the fluid specification for your vehicle before adding anything.
Not interchangeable with Mercon V
Despite the similar names, Mercon LV, Mercon V, and Mercon ULV are separate specifications. Follow the requirement in your owner's manual; do not substitute one for another without manufacturer approval for the exact application.
Don't substitute across brands
Use the specification and approval requirements in the owner's manual to evaluate any replacement product. A different bottle brand does not by itself establish compatibility. For background on other specifications, see Dexron-VI and ATF+4. For the full picture, see types explained, and if you're topping up with a different bottle, read can you mix fluid?.
Frequently asked questions
What cars use Mercon LV?+
Use Mercon LV only where the owner's manual or factory service information specifies it for your exact year, engine, and transmission. The Ford, Lincoln, or Mercury badge alone does not establish the requirement.
Is Mercon LV the same as Mercon V?+
No; they are different specifications. Follow the exact requirement in your owner's manual and do not substitute between them without manufacturer approval for your transmission.
Can I use Dexron-VI instead of Mercon LV?+
Not unless your vehicle explicitly approves it. They are different specifications tuned to different transmissions. Use the fluid your manufacturer specifies to avoid shudder or damage.
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