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Maintenance for High Mileage Vehicles in Winnetka, CA

Posted June 5, 2022 11:35 AM



The median age for cars in the Winnetka, CA area was over nine years. And two-thirds had over 75,000 miles. At A.G. Automotive & Diagnosis we hear reports that those numbers continue to rise.

If you have a high-mileage vehicle in the Winnetka area, bring it into A.G. Automotive & Diagnosis for high-mileage maintenance.
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608

Many people in CA are keeping their vehicles longer. The economy has influenced that, but the fact that modern vehicles are more durable and reliable means that owning a high mileage vehicle doesn't have to be a painful experience.

Local car owners in Winnetka with over 100,000 miles on their vehicles often ask which service intervals they should follow. Let's start with the special needs of the older vehicle...

The reality is that time and mileage will take its toll. The engine and transmission will have more sludge. The fuel, steering and brake systems will have gum and varnish built up. There'll be more dirt and contaminants in the fuel tank. Corrosion and deposits in the cooling system. And seals and gaskets will start to dry out.

All of this, plus normal wear and tear, means that the engine might not be as strong as new, so it just has to work harder to get the job done.

So we need to compensate. Consider high-mileage formulations for oil changes, transmission service, etc. These special formulations contain additives that condition the seals and gaskets to prevent leaks. They also have more detergents to clean sludge and other deposits. They cost a bit more, but they're worth it.

In general, if an auto service was recommended every 15,000 miles when the car was new, you should continue to get the service done every 15,000 miles.

Talk with your Winnetka service advisor at A.G. Automotive & Diagnosis about the condition of your engine. See if he thinks you should adjust your auto service intervals for oil changes or other auto maintenance to account for the older engine working harder.

Expect the oil filter to get dirty faster. Same goes for the fuel filter. And some leaks are to be expected so you need to keep a closer eye on fluid levels.

If anything, following recommended service intervals for your vehicle is more important in a higher mileage vehicle. Skipping oil changes or other services can lead to problems much more quickly than with a newer vehicle.

So, have your Winnetka auto service advisor at A.G. Automotive & Diagnosis help you with an assessment of your older car or truck. If you haven't gotten around to a fuel system cleaning, or replacing power steering or brake fluid, a differential service or transmission service – it's time to start taking care of those things. It'll help keep you on the road for many more happy miles.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com



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This place is amazing. Ever since they were able to help me with my airbag light and made sure to get that checked out to ensure my safety I'm never going back to my other mechanic. They're so nice and professional and actually take the time to explain what needs to be done. They also don't pressure you to get a service unless you really need it. They take your road safety seriously. I'll continue to frequent this place when I need a service done. Tammy is amazing! The sweetest. Protect her at all times. Chuck is so cool and so helpful especially when it came to my first time going there for my airbag light. Chris handled my recent service and was nice. Abraham did an amazing job in getting the repairs done quickly but efficiently. No issues at all. -Aracely Perez

, 09/14/2026

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