Facebook Ads vs Google Ads for Auto Shops

They're different tools

Asking "should I run Facebook ads or Google ads" is like asking "should I buy a hammer or a screwdriver." Different jobs. Most shops should do some of both, but for different reasons.

Here's when each one actually works, the math on both, and the common ways shops burn money on them.

Google Ads: for high-intent acquisition

Someone searches "mechanic near me" or "brake repair [city]" and your ad shows up. That's Google Ads. The person has a specific need right now. Your cost per click (CPC) in auto repair runs $4–$15 depending on the market.

When it works:

• You have consistent capacity and can handle new customers
• You're comfortable paying $15–$40 per new customer acquired
• You have a fast way to convert a click to an appointment (click-to-call, online booking)

When it doesn't:

• You're already at capacity and turning people away
• Your GBP is a mess (the ad clicks through to the listing, and people look at reviews/photos before calling)
• You haven't tracked conversions, so you have no idea what's working

Budget to start: $30–$60/day. Less than that is too little data to optimize with. More than that on day 1 is burning money before you know what works.

Keywords to target:

• "[city] mechanic"
• "[city] auto repair"
• "[specific service] near me" (brake repair, oil change, transmission repair)
• Your competitor's brand names (yes, this is legal and effective)

Keywords to exclude:

• "free diagnostic" (trains the wrong customer)
• "cheap [anything]" (trains the wrong customer)
• Specific make/model names if you don't work on them (e.g. exclude "Tesla" if you don't)

Google Local Services Ads: usually better than regular Google Ads

Separate product, same platform. LSA puts your phone number at the very top of local search results. You pay per lead (call), not per click. Typical cost per lead in auto repair: $25–$60.

When it works:

• You're in a market where LSA is available for auto repair (check here: https://ads.google.com/local-services-ads)
• You can answer the phone during business hours
• You're okay with Google being the routing layer between you and customers

When it doesn't:

• You don't have someone who can answer the phone promptly
• Your service quality is inconsistent (LSA requires you maintain Google Guarantee status)

Budget to start: $40–$80/day. LSA is worth trying before regular Google Ads in most markets.

Facebook/Instagram Ads: for rediscovery and new service introduction

Facebook ads don't work for "I need a mechanic right now" searches. Nobody scrolling Facebook is actively looking for a mechanic. What they work for:

1. Showing up to lapsed customers. You upload your customer list, Facebook matches emails and phone numbers, and you can serve ads specifically to customers who haven't visited in 6+ months. This is surprisingly effective.
2. Announcing new services. New location, new service (mobile tire replacement, EV diagnostics), extended hours. People who follow you see it.
3. Seasonal reminders. Tire change season, A/C before summer, road-trip ready checklists.

When it doesn't work:

• Cold prospecting. Trying to acquire brand-new customers who've never heard of you via Facebook ads is a money furnace. Expect $60–$150 cost per acquisition, compared to $15–$40 on Google Ads.
• Any shop without an existing customer list. Without a seed audience to retarget, you're doing cold prospecting (see above).

Budget to start: $20–$40/day, focused entirely on custom audiences (your customer list, website visitors).

The actual math

Let's say you spend $1,500/month on paid ads and want to estimate impact.

Scenario A — Google Ads only:

• CPC: $8 average
• Clicks: ~185
• Click-to-appointment conversion: ~8%
• Appointments: ~15
• Appointment-to-work conversion: ~70%
• New customer jobs: ~10
• Average first-visit revenue: $350
• First-visit revenue: ~$3,500
• Lifetime value of those 10 customers over 3 years: ~$10,500

ROI: $3,500 first month, ~$10,500 over 3 years on $1,500 spend. Good.

Scenario B — Facebook only (cold):

• CPM: $20
• Impressions: ~75,000
• Click-through rate: ~0.8%
• Clicks: ~600
• Click-to-appointment: ~1.5%
• Appointments: ~9
• Appointment-to-work: ~60%
• New customer jobs: ~5

ROI: Worse. Much worse.

Scenario C — Facebook retargeting lapsed customers:

• Audience: 500 lapsed customers
• Impressions over month: ~12,000
• Clicks: ~200
• Click-to-appointment: ~10% (these are warm)
• Appointments: ~20
• Appointment-to-work: ~75%
• Reactivated customers: ~15

ROI: Very good. This is Facebook's actual use case for auto repair.

The take: Google for new acquisition. Facebook for reactivating people who already know you.

Common ways shops burn money

• No conversion tracking. You have to know if a click becomes a call becomes an appointment. Without this, you're flying blind.
• Running ads with a weak landing page. The best Google ad in the world dies on a slow, confusing landing page. Make sure the click lands somewhere that immediately offers a way to book or call.
• Targeting too broad a geography. "National" or "metro-wide" wastes spend. 10-mile radius is typically right.
• Ignoring the search query report. Google shows you exactly what searches triggered your ad. Review this weekly, add negative keywords.
• Hiring an agency without in-house knowledge. Agencies charge $800–$2,000/month to run Google Ads. If you don't know what they should be doing, they'll charge you whether they work or not.

Starting budget for a shop new to paid ads

Month 1: $30/day Google Ads, $20/day Facebook retargeting of existing customer list. $1,500 total spend. Learn what works.

Month 2 onward: reallocate based on what converted. Most shops end up around 60/40 Google/Facebook or 70/30.

The tracking minimum

At a bare minimum you need:

1. A way to know a phone call came from a Google ad (call tracking number or Google forwarding number)
2. A way to know a form submission came from which channel
3. A way to connect a new appointment to the ad that produced it

Without these, you have no way to know what works and you're throwing money into a black box.

When to NOT run paid ads

• Your shop is at capacity. Ads turn into customer-turning-away and hurt your reputation.
• Your GBP has <20 reviews or an average below 4.3. Fix that first. It's the highest-leverage thing to do.
• Your close rate on walk-ins is already <50%. Paid ads make the close rate worse by bringing in lower-intent traffic. Fix the core funnel first.

How Pitlane helps

Pitlane's customer list integrates with Facebook Custom Audiences. You can push your lapsed-customer segment directly into Facebook ads for retargeting. And every lead from a paid ad gets tracked in the contact record so you can actually see ROI per channel.

See how marketing campaigns work →