The Best Oil Change Services
We graded 50 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 21,474 Google reviews of 50 top-rated oil change services nationwide. Updated October 28, 2026.
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Best oil change services for auto engine diagnostic
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Al's Full Service Auto RepairHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%5.00★Number of such jobs 25%44Overall Experts Score 20%82Job match= 93Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.93
Chico Car CareHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%4.92★Number of such jobs 25%51Overall Experts Score 20%78Job match= 88Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.88
A & T Auto CareHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%4.96★Number of such jobs 25%25Overall Experts Score 20%93Job match= 87Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.87
Old Ox Tire & AutoHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%5.00★Number of such jobs 25%18Overall Experts Score 20%90Job match= 86Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.86
Master AutoTechHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%5.00★Number of such jobs 25%19Overall Experts Score 20%85Job match= 85Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.85
Albert Auto Service IncHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%4.85★Number of such jobs 25%48Overall Experts Score 20%79Job match= 83Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.83
Tenleytown AutomotiveHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%4.88★Number of such jobs 25%26Overall Experts Score 20%89Job match= 82Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.82
Zone Kar IncHow Job match is calculatedBuilt only from reviews Google tagged “Auto engine diagnostic”:Stars on this job 55%5.00★Number of such jobs 25%14Overall Experts Score 20%78Job match= 81Stars are pulled toward the category average (4.76★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.81Job match = this company’s ★ on reviews Google tagged “Auto engine diagnostic” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.
What customers said about auto engine diagnostic
Master AutoTechThe staff were very thorough and diagnosed issues that other shops could not figure out. I am very impressed with the work they did and will definitely be bringing my vehicles here in the future
Tenleytown AutomotiveExcellent service, fast and very professional. They assist you in both English and Spanish
A & T Auto CareThey found what was wrong with my vehicle quickly and were upfront about the cost before working on it.
Chico Car CareI have taken my car to Chico Car Care for years. This last time I went in, my car needed significant repairs. Dan worked with me to get my car safely back on the road. He listened to my concerns and my needs and addressed those. I trust that when he says something needs to be done that it really needs to be done. He…
Old Ox Tire & AutoI took a used vehicle I purchased for a full diagnostic assessment while I had a 5-day return option. The team at Old Ox was professional and timely in their detailed review of all the vehicle components systems. The report included pictures, and detail on what was maintenance and safety concerns. I feel confident…
Zone Kar IncThe absolute best - we are fortunate enough to live in the neighborhood, and on multiple occasions Murph and his team have squeezed in my car and taken a thorough look. They are always kind, clear, and transparent. More than once they've explained the issue, or fixed it, at no charge (including recently, when they…
Overall ratings
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 |  Christian Brothers AutomotiveCedar Rapids, IA | A 97How 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%96+52.4Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%88+6.2Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.96 | — |
| 2 |  Manley’s Mobile ServiceCedar Rapids, IA | A 97How 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 59%97+56.9Reliability 26%96+25Value 15%100+15.2Experts Score= 97Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AA– | 4.98 | — |
| 3 |  Choice Tires and AlignmentTooele, UT | A 97How 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%96+52.4Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.94 | — |
| 4 |  BBC Auto RepairSomerville, MA | A 94How 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%96+52.4Reliability 24%97+23.5Value 14%100+14.1Replies to reviews 7%54+3.8Craft & service penalty99−0.1Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.96 | — |
| 5 |  Spencer Auto Repair ShopChico, CA | A 94How 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%94+51.3Reliability 24%94+22.8Value 14%94+13.3Replies to reviews 7%100+7.1Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.93 | — |
| 6 | A & T Auto CareChico, CA | A 93How 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%92+50.2Reliability 24%89+21.6Value 14%100+14.1Replies to reviews 7%99+7Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.90 | — |
| 7 |  John's Automotive ServiceCedar Rapids, IA | A 91How 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%91+49.6Reliability 24%89+21.6Value 14%100+14.1Replies to reviews 7%78+5.5Experts Score= 91Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAB | 4.85 | — |
| 8 |  Precision Auto RepairChico, CA | A 91How 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%93+50.7Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%48+3.4Experts Score= 91Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.91 | — |
| 9 | Old Ox Tire & AutoWashington, DC | A 90How 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%89+48.5Reliability 24%84+20.4Value 14%99+14Replies to reviews 7%100+7.1Craft & service penalty97−0.3Experts Score= 90Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.88 | — |
| 10 | Tenleytown AutomotiveWashington, DC | A 89How 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%87+47.5Reliability 24%82+19.9Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 89Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.86 | — |
| 11 |  Hubbell's Auto RepairCedar Rapids, IA | A 88How 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%91+49.6Reliability 24%87+21.1Value 14%100+14.1Replies to reviews 7%48+3.4Experts Score= 88Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAC | 4.81 | — |
| 12 |  Milex Complete Auto CareCedar Rapids, IA | A 87How 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%81+19.6Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 87Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.86 | — |
What jobs cost
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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Oil Change Services at a glance
How the 50 oil change services we rated compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A2550%
- Grade B2244%
- Grade C24%
- Grade D12%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up1020%
- 4.80–4.89★1836%
- 4.60–4.79★1938%
- Below 4.60★36%
What customers praise
Share of Google review highlights.
- Quality1,22827%
- Professionalism1,32829%
- Responsiveness00%
- Punctuality1,00922%
- Value96921%
Was the price fair?
All price verdicts left with reviews.
- Great price1,30439%
- Reasonable1,87156%
- Overpriced913%
- Not sure903%
Price verdicts by year
Share calling it great / reasonable / overpriced.
How we grade
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.