Case Study: Oil Stop & Happy's Car Wash

AI Phone Interviews: How to Reduce Time to Hire by 60%

Recruiting is hard. Between sifting through endless resumes, juggling calls, and finding time to actually connect with great talent, recruiters and hiring managers often spend more time filtering than hiring.

That’s where Classet’s AI phone interviews change the game — saving recruiters hours of gruntwork while giving candidates an immediate, engaging experience.

How Oilstop Saves 60% of Hiring Time With Automated Phone Interview Tools

Ben Enns, Director of People and Mission at Oil Stop and Happy’s Car Wash, runs a 30-location oil change chain and 7 growing car washes. He knows firsthand the pain of recruiting at scale for hourly workers.

“You turn on an ad in Indeed and you’ll get 100 applications in a day — but most of them aren’t worth your time. Being the only one reviewing applicants, it was taking my nights and my weekends. My wife was like, hey, I miss you. Through Divine Intervention, I met Classet.” — Ben Enns, Oilstop

And this challenge isn’t unique to Oilstop. Employers received an average of 180 applicants for every hire in 2024, while the average time to hire ranges from 23 to 44 days across industries [2] [3].

The ROI: 60% of Time Returned Each Week

With Classet’s AI recruitment software, Oilstop eliminated the resume-screening bottleneck. Instead of manually reviewing hundreds of applications, every applicant receives an immediate, conversational phone interview.

The AI asks role-specific questions, collects structured data, and surfaces only qualified candidates for Ben’s attention.

Ben calls it “a more effective filter” — one that’s given him back 60% of his week. That time is now invested in strategy, growth, and engaging top candidates instead of resume shuffling.

This efficiency mirrors industry-wide results: 73% of hiring professionals say AI tools have sped up their time-to-hire [4].

Why Candidates Love AI Interviews Too

Some companies worry candidates won’t like automated interviews. The opposite is true.

Candidates appreciate instant follow-up after applying and often find the conversations surprisingly natural.

Take Dennis, a candidate for Oilstop’s Guest Experience Host role. At first, he thought the AI was too human to be real:

“This is a robotic call? I don’t believe you, you sound real. Your voice is incredibly nice… I can’t believe that you’re not real.”

Dennis went on to share his story with passion:

“Forget about it, I’m more experienced with people than you could imagine. I sold more Toyotas than anyone. I enjoy working, I enjoy being around people, and I think I’d be a good fit.”

By the end, Dennis was impressed:

“It was a pleasure talking to you, Joy. Really was. You have a great rest of your day.”

Instead of being a cold filter, Classet’s AI acts as a supportive assistant — giving candidates the chance to highlight their communication skills, energy, and personality beyond the resume.

How to Screen Job Applicants Faster: The Classet Advantage

For organizations seeking the best hiring software for hourly workers, AI phone interview tools deliver clear advantages:

Immediate Response Eliminates Delays

• Every applicant gets instant engagement after applying

• No scheduling conflicts for screening calls

• 24/7 availability across time zones

• Prevents candidate drop-off due to slow follow-up

Enhanced Quality Assessment

• Communication skills revealed through conversation

• Personality fit measured for customer-facing roles

• Cultural alignment surfaced beyond resume keywords

• Structured data for fair, objective comparisons

Operational Efficiency at Scale

• Handle multiple interviews simultaneously

• Consistent questioning across all candidates

• Automated transcripts, scoring, and summaries

• Significant reduction in recruiter overhead

Research backs this up: companies using AI interviews report up to 67% lower hiring costs and a 45% decrease in time-to-hire [5]. Conversational AI in recruitment can even lead to an 87.64% reduction in hiring costs compared to traditional methods [6].

From Gruntwork to Strategic Growth

Recruiting will always involve casting a wide net. Ben compares Indeed to fishing: you throw out a big net and haul in everything. But with Classet, you deploy a smarter second net — one that automatically filters the catch and brings only the best candidates to your desk.

As Ben puts it:

“Classet helps to redefine your attentions and put them where they belong.”

With Classet, recruiters can:

• Cut screening time by 60% or more

• Deliver an exceptional candidate experience

• Surface communication skills and personality, not just resumes

• Scale hiring without burnout

✅ Watch the Oilstop testimonial video
🎥 Check out a real candidate interview demo