High Mileage Oil Change in Rohnert Park
Seal Conditioners | Reduced Oil Consumption | Extended Engine Life
Valvoline MaxLife | Mobil 1 High Mileage | Castrol GTX High Mileage
Protect Your High-Mileage Engine Investment
TL;DR:
High mileage oil is specially formulated for vehicles with 75,000+ miles. It contains seal conditioners that rejuvenate aging gaskets (reducing leaks), extra anti-wear additives for worn parts, and detergents to clean sludge buildup. Available in conventional and synthetic formulas. If your car is burning oil, leaking, or has high mileage, this is the right oil for you.
Your car hit 75,000 miles—congratulations! You've invested years of care into your vehicle, and it's still running strong. But aging engines have different needs than new ones. Seals become brittle and leak. Parts wear and need extra protection. Deposits accumulate in oil passages. High mileage oil addresses all these issues.
At Rohnert Park Transmission & Auto Repair, we specialize in keeping high-mileage vehicles running for 200,000, 250,000, even 300,000+ miles. We've serviced countless Toyota Camrys with 250K miles, Honda Accords with 200K miles, and Ford trucks with 300K miles. The secret? Proper maintenance, including the right oil for aging engines.
Did You Know?
The average age of vehicles on US roads is now 12.5 years—a record high. More drivers than ever are keeping their vehicles past 100,000, 150,000, and 200,000 miles. High mileage oil was specifically developed to address the unique needs of these aging but reliable vehicles.
What Makes High Mileage Oil Different?
High mileage oil isn't just marketing—it contains specific additives not found in regular oil:
Seal Conditioners
The #1 benefit of high mileage oil. Rubber seals and gaskets become brittle and shrink over time, causing leaks. Seal conditioners penetrate these aging seals, causing them to swell back to their original size and flexibility.
Result: Reduced oil leaks, less oil consumption, no more spots on your driveway
Extra Anti-Wear Additives
Engines with 75,000+ miles have worn components with looser tolerances. High mileage oil contains higher concentrations of ZDDP and other anti-wear compounds that coat metal surfaces and reduce friction on aging parts.
Result: Extended engine life, quieter operation, maintained compression
Enhanced Detergents
Years of driving cause sludge and deposits to accumulate in oil passages, valve train, and piston rings. High mileage oil contains powerful detergents that dissolve these deposits and keep them suspended for removal.
Result: Cleaner engine internals, restored oil flow, better performance
Viscosity Stabilizers
Worn engines have looser tolerances and may experience oil pressure drops. High mileage oil contains viscosity modifiers that maintain proper thickness across temperature ranges, ensuring adequate oil pressure.
Result: Stable oil pressure, proper lubrication, reduced engine noise
Signs Your Engine Needs High Mileage Oil
Even if you haven't hit 75,000 miles, these symptoms indicate high mileage oil could help:
Common High-Mileage Engine Symptoms
- !Oil spots on driveway - Leaking seals need conditioning
- !Adding oil between changes - Consumption indicates worn seals
- !Blue exhaust smoke - Oil burning past piston rings
- !Engine running rougher - Deposits affecting performance
- !Increased engine noise - Worn parts need extra protection
- !Oil light flickering - Pressure drops from wear
- !Valve train noise - Lifter tick from deposits
- !Decreased fuel economy - Friction from sludge buildup
Important: High mileage oil helps with minor leaks and wear symptoms. If you have significant oil leaks (puddles under car), severe oil consumption (quart every 1,000 miles), or major mechanical issues, you need repairs—not just an oil change. We'll honestly assess your situation.
Premium High Mileage Oil Brands
Valvoline MaxLife
Available in Conventional & Full Synthetic
The original high mileage formula. Contains MaxLife Technology seal conditioners, premium anti-wear protection, and extra cleaning detergents. Trusted by millions of high-mileage vehicle owners.
Mobil 1 High Mileage
Full Synthetic Formula
Premium synthetic protection with seal conditioners. Provides 10,000-mile protection even in older engines. Reduces leaks, fights sludge, and protects aging components.
Castrol GTX High Mileage
Available in Conventional & Synthetic Blend
Phosphorus Plus Technology reduces engine wear. Superior cleaning action removes sludge. Seal conditioners help prevent leaks.
Pennzoil High Mileage
Made from Natural Gas (PurePlus Technology)
Cleaner base oil with fewer impurities. Active Cleansing Agents continuously clean while you drive. Seal conditioners reduce leaks.
High Mileage Oil Change Service Includes
Oil Change
- ✓Drain and inspect old oil for contamination
- ✓Up to 5 quarts high mileage formula oil
- ✓New high-quality oil filter
- ✓Check for existing oil leaks
- ✓Service reminder sticker
Free 21-Point Inspection
- ✓All fluid levels checked and topped off
- ✓Brake inspection (critical for safety)
- ✓Tire pressure and tread depth
- ✓Battery test (important for older cars)
- ✓Honest assessment of vehicle condition
Our technicians understand high-mileage vehicles. We won't try to sell you a new car—we'll help you get another 50,000 miles out of your current one. Honest recommendations, no pressure.
High Mileage Oil Change FAQ
When should I start using high mileage oil?
Most manufacturers recommend 75,000 miles, but you can start at 60,000 for preventive benefits. If you notice oil leaks, consumption, or engine noise before 75,000 miles, switch earlier.
Does high mileage oil stop oil leaks?
It helps with minor seepage from aging seals by conditioning and swelling them back to size. It cannot fix damaged gaskets, worn piston rings, or major mechanical failures. We'll honestly assess your leak.
Is high mileage oil synthetic or conventional?
Both are available. We offer conventional high mileage (budget-friendly, 3,000-5,000 miles) and synthetic high mileage (premium, 5,000-7,500 miles). We recommend based on your vehicle and budget.
My car has 150,000+ miles. Is it too late?
Never too late! High mileage oil benefits engines at any mileage. The seal conditioners, anti-wear additives, and detergents help at 100K, 150K, 200K+ miles. Many customers report improvements even after switching late.
How often should I change high mileage oil?
Conventional high mileage: 3,000-5,000 miles. Synthetic high mileage: 5,000-7,500 miles. For Sonoma County severe conditions, we recommend the lower end of these ranges.
Keep Your High-Mileage Engine Running Strong
Specialized oil for vehicles with 75,000+ miles. Free 21-point inspection. Honest recommendations.
305 Laguna Dr, Rohnert Park, CA 94928 | Mon-Thu 7:30am-5pm, Fri 7am-4pm