How Heavy is a Typical Sedan?

Is the RX7 legal in the US?

Yes, the Mazda RX-7 can be legal in the United States, but its legality depends entirely on the specific model year and how it was imported. Models from 1992 or earlier are now fully legal for import and registration under the 25-Year Import Rule . The iconic third-generation FD RX-7 (1993-1995) faces significant legal barriers unless imported under very specific, costly exemptions. The primary regulation is the 25-Year Rule enforced by the National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA). This rule allows vehicles that are at least 25 years old to be imported without needing to comply with the U.S. safety and emissions standards they were originally built without. This makes the first-generation (SA22C) and earlier second-generation (FC) models straightforward to own. For the highly sought-after 1993-1995 FD RX-7, the situation is complex. Since these models are now over 25 years old (as of 2023), they are eligible for import under the rule . However, a 1995 model only became eligible in 2020. The major hurdle for any non-U.S.-spec RX-7 is proving EPA compliance. You must provide documentation that the vehicle meets emission standards, which often requires a costly EPA-approved conversion. The table below outlines the legal status for key RX-7 generations: Model Generation Example Model Years U.S. Market Version Sold? Current Legal Status for Import (as of 2024) Key Consideration 1st Gen (SA22C) 1979-1985 Yes (1979-1985) Fully Legal (All years >25 yrs old) Easiest to import and register. 2nd Gen (FC) 1986-1991 Yes (1986-1991) Fully Legal (All years >25 yrs old) U.S.-spec models are plentiful. 2nd Gen (FC) 1992 Yes (1992) Fully Legal (Became eligible in 2017) Final year of the FC. 3rd Gen (FD) 1993-1995 No (Never officially sold) Eligible, but requires EPA compliance proof Must be converted to meet standards or use a "non-conformance" import bond. The most practical path is to purchase a U.S.-spec, federally legal RX-7 already within the country. The market for clean, imported FDs that have undergone the proper legalization process is active but expensive. Attempting to privately import an FD without following every regulatory step can result in the car being seized and crushed by U.S. Customs. Always work with a reputable import specialist who handles the NHTSA and EPA paperwork.

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Can you use Dawn dish soap with a Magic Eraser?

No, you should not use Dawn dish soap with a Magic Eraser (melamine foam). Combining them creates an overly aggressive cleaning paste that can permanently damage surfaces. The Magic Eraser works through micro-abrasion—like ultra-fine sandpaper—and adding dish soap, especially a potent degreaser like Dawn, reduces needed friction control and can leave behind a difficult-to-rinse soap residue that attracts more dirt. The science is straightforward. A Magic Eraser is essentially a fine abrasive. When used dry or with just water, it provides a controlled level of abrasion. Dawn dish soap is a powerful surfactant designed to break down grease. Mixing them creates a slurry that can unevenly accelerate the abrasive process. You lose the "feel" of how much material you're removing, greatly increasing the risk of scratching, dulling, or wearing through protective coatings on surfaces like stainless steel appliances, glossy paint on cars or kitchen cabinets, and sealed countertops. For automotive contexts, this warning is critical. Using this combination on a car's clear coat, glass, wheel finishes, or interior screens and plastics is a surefire way to introduce swirl marks, haze, and permanent scratches. It strips waxes and sealants instantly. Surface Type Risk from Dawn + Magic Eraser Recommended Safe Alternative Car Clear Coat / Paint High risk of irreversible swirls & haze; strips all protection. Car-specific wash soap & microfiber mitt. Glass / Windows May create a frosted, scratched appearance. Glass cleaner with ammonia or vinegar solution & soft cloth. Stainless Steel Appliances Can scratch the grain and remove anti-fingerprint coatings. Dedicated stainless steel cleaner & a soft cloth. Acrylic or Plexiglass Will cloud and deeply scratch the surface. Mild soapy water & a very soft microfiber. Plastic Tail Lights/Lenses Causes permanent dulling and light diffusion. Plastic polish & a dedicated applicator pad. The correct method is to use each product separately for its intended purpose. Use Dawn (diluted) for cutting through heavy grease on dishes or degreasing engine bays—rinsing thoroughly. Use a Magic Eraser with water only on durable, non-porous surfaces like porcelain sinks or scuff marks on walls, applying minimal pressure. Always test in an inconspicuous spot first. When in doubt, especially on valuable surfaces like your car's finish, choose the milder, purpose-made product.

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How long does a car battery usually last?

The average car battery lasts between 3 to 5 years . However, this isn't a guarantee; it's a general range influenced heavily by climate, driving habits, and vehicle type. Extreme heat is the leading cause of premature battery failure, while frequent short trips prevent the battery from fully recharging. Several key factors determine your specific battery's lifespan: Factor Impact on Battery Life Details / Data Point Climate High Impact In hot southern states (e.g., Arizona, Texas), average life may be 2-3 years . In moderate northern climates, 4-5+ years is common. Driving Habits High Impact Short trips (<20 minutes) underuse the charging system. Infrequent driving leads to discharge through parasitic drain. Vehicle Electronics Medium Impact Modern cars with start-stop systems , numerous ECUs , and always-on connectivity place higher demand on the battery. Battery Type Medium Impact Standard flooded lead-acid batteries are common. AGM (Absorbent Glass Mat) batteries, used in start-stop vehicles, are more robust and can last longer. Maintenance Medium Impact Ensuring clean, tight terminals prevents power loss. Professional testing during oil changes checks CCA (Cold Cranking Amps) and state of charge. You can maximize battery life. Ensure your charging system is working correctly—a faulty alternator will kill a new battery quickly. If you mostly take short drives, consider using a battery maintainer or tender occasionally. Have the battery tested professionally at least twice a year, especially before summer and winter. When replacing, match or exceed the original equipment's CCA rating and reserve capacity for your climate.

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At what mileage do subarus break down?

There isn't a single mileage where all Subarus break down. With proper maintenance, many Subaru models are known to reach 200,000 to 300,000 miles reliably. The vehicle's longevity depends far more on consistent care, driving conditions, and addressing known model-specific issues than on a predetermined mileage "expiration date." Industry data and long-term reliability studies from sources like Consumer Reports and J.D. Power consistently rank Subaru above average for longevity. Their signature boxer engine (where pistons move horizontally opposite each other for a lower center of gravity) and Symmetrical All-Wheel Drive system are robust but require diligent upkeep. The key is proactive maintenance, especially for common higher-mileage issues: Head Gasket Seals: A well-known concern for older non-turbo 2.5L engines (EJ25) pre-approximate 2012. Failure often occurs between 150,000-200,000 miles. Using the correct coolant and addressing overheating immediately is critical. CVT (Continuously Variable Transmission) Fluid: For models so equipped, strict adherence to the severe-service maintenance schedule (often every 60,000 miles) for fluid changes is non-negotiable for long-term health. Oil Consumption: Some engines are known to consume more oil as they age. Regular oil level checks (every 1,000 miles) and using the recommended weight are essential. A study of used vehicle listings and owner community data shows a pattern of high-mileage survivability for well-maintained examples. Model Common High-Mileage Benchmark Critical Maintenance Focus Subaru Outback/Forester (non-turbo) 200,000 - 250,000+ miles Head gasket monitoring, timing belt/chain service, oil consumption checks. Subaru Impreza/WRX 150,000 - 200,000+ miles Turbocharger care (if equipped), aggressive driving wear-and-tear, clutch life. Subaru Legacy (non-turbo) 200,000 - 300,000+ miles Similar to Outback; consistent fluid changes, suspension component renewal. Ultimately, a Subaru's breaking point is not about miles on the odometer, but about the maintenance history behind those miles. The most reliable predictor is a complete service record demonstrating regular, high-quality care.

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What household soap is good for washing cars?

Using household dish soap or hand soap to wash your car is not recommended. While it will remove dirt, these soaps are designed to strip grease and oils, which will aggressively remove the protective wax or sealant coating on your car's paint. Over time, this leads to a dull finish, reduced protection, and can make the paint more susceptible to environmental damage. For a proper wash, you need a dedicated car wash soap or shampoo that is pH-balanced (neither too acidic nor too alkaline) to clean effectively without damaging existing protective layers. The primary issue lies in the chemical formulation. Dish soaps are potent degreasers meant to cut through tough grease on plates. Your car's paint, however, relies on a thin layer of wax or synthetic sealant for shine and protection against UV rays, acid rain, and contaminants. Stripping this layer leaves the clear coat vulnerable. A proper car wash soap is formulated to lift dirt without completely dissolving the protective coating. Many also contain lubricants to help prevent the dirt from scratching the paint during the washing process. Here’s a quick comparison of the two approaches: Aspect Household Dish Soap Dedicated Car Wash Soap Primary Purpose Cut grease & food residue on dishes Safely lift dirt from automotive paint pH Level Often high (alkaline) Formulated to be neutral or pH-balanced Effect on Wax/Sealant Strips it away quickly Cleans with minimal removal Paint Lubrication Low, increasing scratch risk Typically high, reducing swirl marks Long-term Result Dull, unprotected paint finish Maintains gloss and protection If you're in a true pinch and have no car soap, using a small amount of a clear, moisturizing body wash or baby shampoo is a slightly less harsh alternative to dish soap, as they are gentler. However, this should be a one-time exception. For routine care, invest in a quality car wash concentrate. It’s inexpensive, lasts for many washes, and is the single easiest way to preserve your car's appearance and value. Always follow the two-bucket method (one for soapy water, one for rinsing your mitt) to minimize scratches.

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Can I use Dawn dish soap to wash my car?

No, you should not use Dawn dish soap to wash your car. While it will remove dirt, it is too effective at stripping oils, which will degrade your car's wax or sealant protection and can dry out rubber trim and plastic over time. Automotive shampoos are specifically formulated with a neutral pH to clean without harming protective coatings or materials. Dawn and similar dish soaps are powerful degreasers designed to cut through tough grease on dishes. Your car's clear coat, however, benefits from a layer of wax, ceramic coating, or paint sealant for protection and shine. These products are not just dirt; they are carefully applied polymers or natural carnauba. A harsh detergent will strip this layer away, leaving your paint unprotected against UV rays, bird droppings, and road contaminants. Furthermore, the surfactants in dish soap can be difficult to rinse off completely, leading to water spotting. They can also accelerate the fading and cracking of exterior plastic trim, rubber seals, and vinyl. For a proper wash, invest in a dedicated pH-neutral car wash soap . These soaps lift dirt without compromising your paint's protection. If you've recently used dish soap, it's a good idea to reapply a protective wax or sealant afterward. Aspect Dawn Dish Soap pH-Neutral Car Wash Soap Primary Purpose Degrease dishes Safely clean automotive surfaces pH Level Alkaline (~8-9+) Balanced, neutral (~7) Effect on Wax/Sealant Strips it away quickly Preserves it through multiple washes Effect on Rubber/Trim Can cause drying & cracking Often contains conditioning agents Rinsing Ability Can leave residue, promotes spotting Rinses cleanly Long-term Paint Health Compromises protection, may dull finish Maintains protection and gloss

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