Case studies
Case study: promotion of a diesel car service

The client turned to Spilno Agency with the task of improving communication with the contractor and increasing the effectiveness of Google Ads advertising. It was important to quickly make changes to campaigns, quickly adapt the strategy, and ensure a steady increase in the number of requests.
About the client:
A diesel service in Odesa that specializes in repairing high-pressure fuel pumps (HPFP) and diagnosing car fuel systems. Key areas of expertise:
- Diagnostics of high-pressure fuel pumps at BOSCH, SIEMENS, DENSO, CUMMINS, DELPHI stands.
- Repair and testing of fuel injectors, fuel injectors, fuel rails.
- Inspection of the fuel tank, highways, replacement of fuel filters.
- Guarantee for quality work performed.
Solutions:
- Improved communication.
- A separate project team has been assigned:
- Project Manager – responsible for communication with the client and project control.
- Internet Marketer – manages advertising accounts and analyzes performance.
- Team Leader – creates a promotion strategy.
- Use of task management services to quickly track and control execution.
- Regular reporting and meetings with the client several times a month.
- A separate project team has been assigned:
- Optimization of advertising in Google Ads
- Setting up Google Analytics 4 to accurately record all calls.
- Reallocation of budget to effective campaigns.
- Optimization of search and PMax campaigns.
- Improve CTR by updating ads.
- Creating separate campaigns for popular services: diagnostics and repair of fuel pump, injector inspection, full service of fuel systems.
Comparison of advertising effectiveness after switching to Spilno Agency:
| Month | Number of leads | Cost per lead |
| August (before us) | 304 | 315 |
| September (with us) | 331 | 270 |
| October (with us) | 356 | 249 |
| November | 314 | 265 |
| December | 271 | 294 |
| January | 366 | 230 |
How the price of a lead has changed
- Increase in the number of leads:
- August (before cooperation): 304 leads
- January (after cooperation): 366 leads
- Percentage growth: (62 / 304) * 100 ≈ 20.39%
- Decrease in the cost of a lead:
- August (before cooperation): 315 UAH
- January (after cooperation): 230 UAH
- Percentage decrease: (85 / 315) * 100 ≈ 26.98%
3. Overall results:
- The number of orders increased by 20.39%.
- Thecost per lead decreased by 26.98%.
- The client is satisfied with the communication.
- Expansion to other marketing channels is planned: Meta Ads and SEO promotion.
Conclusion
In 5 months of work, Spilno Agency has improved communication with the client and achieved KPIs:
- The number of orders increased by 20.39%.
- Thecost per lead decreased by 26.98%.
Together with the client, we scale the result with the help of additional tools: SEO and Meta Ads.
Frequently Asked Questions
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