Yes, it absolutely matters what brake fluid you use. Using the wrong type can lead to poor braking performance, system damage, or even brake failure. Different vehicles require specific types of brake fluid based on their braking system design. Types of Brake Fluid and Their Differences Brake fluids are classified mainly by DOT (Department of…
Yes, oil stop leak products can work for small, slow leaks, but they are not a permanent fix. These additives are designed to swell gaskets and seals, temporarily stopping leaks. However, they do not repair major damage or worn-out parts. How Does Oil Stop Leak Work? Oil stop leak products contain seal-swelling agents and conditioning…
Yes, an EVAP (Evaporative Emission Control System) leak can affect your car’s performance, but usually in minor ways. While the primary purpose of the EVAP system is to control fuel vapors and emissions, a leak can lead to rough idling, decreased fuel efficiency, and in some cases, slight performance issues. How an EVAP Leak Affects…
If your engine is misfiring or you’re due for tune-up maintenance, you may be wondering: Does O’Reilly Auto Parts change spark plugs? The short answer is: No — O’Reilly does not offer spark plug installation or repair services. They are a retail auto parts store, not a repair shop. What O’Reilly Does Offer While O’Reilly…
If your check engine light is on or your vehicle failed an emissions test, you might be tempted to try a catalytic converter cleaner before replacing this expensive part. But the big question is: Does catalytic converter cleaner really work? The answer is: Yes — but only in certain situations. What Is a Catalytic Converter…
Yes, Royal Purple motor oils contain zinc — specifically in the form of ZDDP (Zinc Dialkyldithiophosphate), an anti-wear additive commonly used in engine oils. Zinc helps reduce metal-to-metal wear, especially in high-performance and older flat-tappet engines. Why Zinc Matters in Motor Oil Zinc (ZDDP) is essential for: Zinc is especially important for: Does All Royal…
Yes, low coolant can affect your car’s air conditioning (AC) performance — indirectly. While the AC system and engine cooling system are technically separate, they’re still closely linked. If your engine doesn’t stay cool, your AC may not work properly or may shut off to protect the engine. How Are Coolant and AC Connected? Your…
You may have heard the old-school tip: “Put black pepper in your radiator to stop a leak.” But is there any truth to it? Yes — pepper can temporarily slow down a small radiator leak, but it’s not a permanent or reliable fix. It’s more of a last-resort emergency trick, not a recommended long-term solution….
If your check engine light comes on, your first thought might be: Can I get the code read for free? And more specifically, does NAPA read codes for free? The short answer is: Some NAPA Auto Parts locations do, but not all. It often depends on the store and whether it has a retail focus…
No — the “check engine” light does not typically come on just because you need an oil change. However, many vehicles have a separate oil change or maintenance reminder light that alerts you when it’s time for service. Still, under certain conditions, oil-related issues can trigger the check engine light. Check Engine Light vs. Oil…