# Fluid Top-Off During Your Oil Change in Upland > Low fluids are a clue, not just a refill. Route 66 Auto Repair in Upland tops off with the fluids your car specifies and notes how much each one needed. Source: https://route66autorepairshop.com/oil-change-services/oil-change-fluid-top-off Updated: 2026-09-17 Business: Route 66 Auto Repair, 1775 W Foothill Blvd, Upland, CA 91786, (909) 608-7699 Hours: Monday to Friday 8 AM–5 PM, Saturday 8 AM–2 PM, Sunday closed **TLDR:** We top off with the **correct fluid types** and record the amount, because a **low reservoir** can be the first sign of a leak. A fluid top-off refills low under-hood fluids to their correct marks during your oil service. Route 66 Auto Repair in Upland tops off with the exact fluid types your vehicle specifies, and we write down how much each reservoir took. That number matters: a reservoir that needs a little after months is normal, while one that needs a lot points to a leak. We tell you which is which instead of quietly pouring and moving on. ## Which fluids do we top off? - Windshield washer fluid - Engine coolant, using the type your engine specifies and only when cool - Power steering fluid on hydraulic systems - Engine oil, if a level check between changes shows it low - Transmission fluid on vehicles with a dipstick, following the maker's procedure ## Why we do not just top off brake fluid Brake fluid drops slowly as pads wear, because the caliper pistons move out. Topping it up can hide that signal and overflow the reservoir when new pads go in. A sudden drop can also mean a leak, which is a safety issue. So we check the level, look at pad wear and lines, and explain what we see before adding any. See our [brake fluid leak detection](https://route66autorepairshop.com/brake-services/brake-fluid-leak-detection) page for more. Mixing types is the other trap. Coolants come in formulas that do not all play well together. We match the fluid to the label or the maker's specification and note it on the ticket. ## How our fluid top-off works 1. **Read each level:** Levels are checked cold where the maker calls for it. 2. **Match the fluid:** We confirm the correct type before adding anything. 3. **Top off and record:** Each reservoir is filled to the mark and the amount is written on the repair order. 4. **Flag trends:** If a reservoir took more than expected, we note a leak check as need-now or can-schedule. ## What's included in the fluid top-off - Level check of each under-hood reservoir - Correct-spec fluid added to the full mark - Amount added recorded on the ticket - Cap and reservoir condition check - Leak follow-up recommendation when warranted ## When is a low fluid a need-now issue? **Need now:** - Coolant that is very low or keeps dropping - Brake fluid below the minimum mark - Power steering fluid low with a whine when turning **Need later:** - Washer fluid empty - Coolant slightly under the line after a long season ## How pricing and timing work Top-offs are part of the [oil change](https://route66autorepairshop.com/oil-change-services/oil-change) visit. If a reservoir needs a large amount or keeps dropping, we recommend a leak check under its own written estimate, such as [coolant leak repair](https://route66autorepairshop.com/cooling-heating-ac-services/coolant-leak-repair). We never pour and hope. Wait or drop-off is decided at intake. Call [(909) 608-7699](tel:+19096087699). ## Frequently asked questions ### Can I top off coolant with water? In an emergency, water can get you to a shop. It lowers boiling protection, which matters in Inland Empire heat, and it dilutes the corrosion inhibitors. We check the mix and correct it at your next visit. ### Why did my coolant need topping off again? A small drop over months can be normal. A repeat drop between visits usually means a leak or an internal loss. We record amounts each time so the pattern is clear. ### Do you top off transmission fluid on sealed transmissions? Sealed units need a specific temperature and fill procedure. We do not guess on those. If a sealed transmission is low, we quote the proper level check and look for the leak. --- Call (909) 608-7699 or visit https://route66autorepairshop.com/contact for a written estimate.