Analyzing 6,465,7806.5M ReviewsFor 17,96018K Experts
We graded 10 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 43,905 Google reviews of 80 top-rated oil change services nationwide; 10 of them in Avondale, AZ. Updated November 1, 2026.
Pick the job — we re-rank companies by how customers rated that exact job.
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of oil change services).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
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| 1 |  Valvoline Instant Oil ChangeAvondale, AZ | A 86How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%85+46.4Reliability 24%78+18.9Value 14%100+14.1Replies to reviews 7%97+6.9Experts Score= 86Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AB–AAA | 4.86 | — |
| 2 |  Brakes PlusAvondale, AZ | A 83How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%82+44.7Reliability 24%77+18.7Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty86−1.4Experts Score= 83Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAA | 4.76 | — |
| 3 |  Wilhelm Automotive Repair & TiresAvondale, AZ | A 81How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%80+43.6Reliability 24%77+18.7Value 14%100+14.1Replies to reviews 7%91+6.4Craft & service penalty87−1.3Momentum penalty97−0.3Experts Score= 81Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAA | 4.80 | — |
| 4 |  Llantera llamasAvondale, AZ | B 79How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%80+43.6Reliability 24%78+18.9Value 14%100+14.1Replies to reviews 7%27+1.9Experts Score= 79Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAD | 4.77 | — |
| 5 |  Horne Mazda Avondale Parts & ServiceAvondale, AZ | B 79How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%81+44.2Reliability 24%77+18.7Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty95−0.5Momentum penalty53−4.7Experts Score= 79Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAACA | 4.82 | — |
| 6 |  Big O TiresAvondale, AZ | B 79How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%76+41.5Reliability 24%70+17Value 14%100+14.1Replies to reviews 7%100+7.1Momentum penalty98−0.2Experts Score= 79Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BB–AAA | 4.76 | — |
| 7 |  Brakes PlusAvondale, AZ | B 77How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%77+42Reliability 24%64+15.5Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty93−0.7Momentum penalty91−0.9Experts Score= 77Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAA | 4.78 | — |
| 8 |  Brakes PlusAvondale, AZ | B 75How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%75+40.9Reliability 24%63+15.3Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty89−1.1Momentum penalty89−1.1Experts Score= 75Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAA | 4.76 | — |
| 9 |  Wilhelm Automotive Repair & TiresAvondale, AZ | B 74How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%73+39.8Reliability 24%63+15.3Value 14%100+14.1Replies to reviews 7%81+5.7Craft & service penalty94−0.6Experts Score= 74Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAA | 4.77 | — |
| 10 |  Ultimate European RepairAvondale, AZ | B 69How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%73+39.8Reliability 24%60+14.5Value 14%100+14.1Replies to reviews 7%100+7.1Momentum penalty36−6.4Experts Score= 69Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAADA | 4.85 | — |
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
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How the 10 oil change services we rated in Avondale, AZ compare, and what customers praise most.
A = score 80+, F = below 20.
Average stars per company.
Share of Google review highlights.
All price verdicts left with reviews.
Share calling it great / reasonable / overpriced.
Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.
Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.
Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.
Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.
The 10 best-rated oil change services in Avondale, AZ average 4.8★ on Google across 9,492 reviews. Valvoline Instant Oil Change has the top rating (4.9★), and Brakes Plus has the most reviews (1,764). Updated October 29, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (9,492 reviews combined) and currently operating. Request a call back and the company will phone you directly.
“Honestly had a great experience with the gentlemen at this location! Manager Brandon, Adam & Cam took care of my oil change quickly, had a great attitude & felt like I could trust them taking care of my service! Glad…” — Google review
“I had a great experience with Alonso. He accommodated me with a same-day appointment for my brakes and alignment, took the time to explain what services I'd need next, and broke down the pricing clearly. In today's…” — Google review
“One of the best auto places I’ve taken my car to. They’re always honest about what needs done and what can wait. They usually throw in whatever coupon or deal they can. And Mark there is really friendly and does…” — Google review
“This place is totally AMAZING!!! FRIENDLY, CLEAN AND RESPECTFUL OF OLDER PEOPLE ESPECIALLY THE OLDER PEOPLE ON A BUDGET LIKE ME.. I HIGHLY RECOMMEND THEM ALWAYS!!” — Google review
“Great experience customer service is off the chain here. From Mechanic Jay and front counter Mr. Reyes. It has been a long time for customer service like this. I will always get my truck serviced here. You gained a…” — Google review
“Jim and Bryan were extremely helpful! Our car had a couple issues pop up as they were working on it and we couldn’t afford it. They did everything they could to drop the price down and were extremely friendly about…” — Google review
“Planters llamas is our go to for all of the services we need. We've been using them for 20 years and have never been disappointed. But I've had to fix one of.my tires 3 times in a month. I will .continue to go to…” — Google review
“I'd like to thank my service advisor, Josh Ballard. He sat down and explained what the inspection showed and answered my questions. Nicest guy I've met so far since I was able to understand what I needed. Best…” — Google review
“Did a full inspection on my vehicle. Had a thorough printed report and discussed the importance of repairing the identified parts.” — Google review
“Great service, Mr. AJ the mngr. explained to me very well about what's needed to do to my car, recently I went to the other tire shop but they didn't tell me about the problem of my car.... I am very satisfied with…” — Google review
We scan Google Maps for oil change service listings in and around Avondale, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Valvoline Instant Oil Change has the highest Google rating on our Avondale list: 4.9 out of 5 from 333 reviews (as of October 29, 2026).
Brakes Plus has the most Google reviews among the companies listed here: 1,764, with a 4.8★ average.
Only open Avondale-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
Also in Avondale: Carpet Cleaning
Analyzing 6,465,7806.5M ReviewsFor 17,96018K Experts