Cheapest Gas in Modesto, CA
Updated April 5, 2026 — Prices updated regularly from EIA data
$4.40
Lowest price at Costco in Modesto
Finding Cheap Gas in Modesto
The best-priced gas in Modesto, California is at $$4.40 per gallon — that's $$0.25 below the local average. Over 50 fill-ups per year, that's $$12.00 in your pocket without changing how you drive.
Maximum Savings in Modesto
Choose Costco over Chevron
$0.25 per gallon
$3.75 per 15-gallon fill • $12.00 per year (est.)
Cheapest Brands in Modesto
| Rank | Brand | Est. Price | Savings vs. Most Expensive |
|---|---|---|---|
| #1 | Costco | $4.40 | $0.25 |
| #2 | Speedway | $4.52 | $0.13 |
| #3 | Circle K | $4.53 | $0.12 |
| #4 | Sunoco | $4.56 | $0.09 |
| #5 | Marathon | $4.57 | $0.08 |
| #6 | BP | $4.59 | $0.06 |
| #7 | Mobil | $4.60 | $0.05 |
| #8 | Exxon | $4.61 | $0.04 |
| #9 | Shell | $4.63 | $0.02 |
| #10 | Chevron | $4.65 | $0.00 |
Gas Saving Tips for Modesto Drivers
- Use a gas rewards credit card. The Costco Citi Visa earns 4% back on eligible gas; Blue Cash Preferred earns 3% at US gas stations. Pairing a reward card with a warehouse club maximizes savings.
- Avoid filling up at highway exits, airports, and tourist areas where convenience premiums routinely add 15-25 cents per gallon.
- Keep your tires properly inflated to the manufacturer's recommended PSI — under-inflated tires reduce fuel economy by up to 3%, costing you money every mile.
- Accelerate and brake gradually. Aggressive driving can reduce fuel economy by 15-40%, directly increasing how often you fill up.
- Track weekly price cycles in your city — most markets follow predictable weekly patterns. Identifying yours and filling on low-price days saves 5-15 cents per gallon consistently.
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