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Category Archives: Fluids

The John's Automotive Care Guide to Proper Fluids for Your Vehicle

The automotive professionals at John's Automotive Care would like to give San Diego drivers an update on some of the things happening in automotive fluids. You know, vehicles are becoming more sophisticated every day.  Fluids such as, oil, coolant and transmission fluid are becoming more specialized at about the same pace.The San Diego do-it-yourselfer has to be pretty careful so that they do not actually harm their vehicle with the wrong type of fluid. That is why so many CA ] owners rely on the advice of their friendly and knowledgeable John's Automotive Care service advisor to not only get the correct family of fluids, but to suggest the formulation that is best for their vehicle and their driving habits in the San Diego area.Let's start with engine oil. San Diego drivers who have been paying attention will have noticed a number of new oil weights on the CA scene in the last several years. Modern ... read more

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Fluids

Automobile Fluids For Your vehicle

If you've walked through the automotive fluids section of an auto parts store in San Diego, you'll know how overwhelming the sheer number of products available can be. How do you know what's right for your vehicle?As you know, these fluids all serve a function in making your car run as you drive around the San Diego area. Your vehicle manufacturer has specified a particular type of fluid for every system from the motor, to the cooling system, brake fluid and so on. When you realize that not every variation is applicable to your vehicle, the task becomes more manageable.First let's talk about why there are so many varieties. Starting with motor oil, we see that manufacturers match the properties of a particular weight or type of oil with the design needs of the engine. For example, engines with sophisticated valve trains often require a thinner weight of oil.Some vehicles around San Diego come from the factory filled with synthetic oil a ... read more

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Fluids

Procrastination Prevention in San Diego

Every one of us has a little procrastinator inside us. Some put off getting our teeth cleaned. Others put off answering our emails. Yet others put off calling friends and family (sorry, Uncle Joe). And there are those of us who put off getting our vehicle's service done, whether it's a repair or regular maintenance. You may make the excuse that you don't have time, it can wait until tomorrow, you have other things to do. Well, there are some things you should NEVER put off when it comes to your vehicle because that procrastination could have dire consequences down the road. The biggest one is changing your oil. Yes, it's one of those things you may hear somebody nag you about, but changing your vehicle's oil regularly is probably the one thing that will do the most to keep things running smoothly… and well. It's the lubricant that keeps metal engine parts from wearing out. Oil doesn't last forever and it gets dirty, so you have to swap it out for fresh every so often. How often ... read more

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Fluids

How to Know When to Change Your Oil at John's Automotive Care

Today in the John's Automotive Care auto care blog, we're going to talk to San Diego drivers about oil change intervals. It seems that as engine technology advances, oil change intervals become longer for John's Automotive Care customers. For example, recently four of the world's largest vehicle manufacturer's shortened the published intervals for several of their engine models. They originally published intervals that extended out to a much as 8,000 miles (13,000 kilometers).In real world San Diego driving, the oil started to sludge up before the recommended change interval. Oil sludge is a thick jelly-like substance: quite literally petroleum jelly – like Vaseline. This goop was clogging vehicle small engine passages so the oil wouldn't flow to some parts of the engine. This resulted in engine damage. We see it too often at John's Automotive Care in San Diego.The vehicle manufacturers began to offer an extended warranty to cover sludge damage. But there was a ... read more

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Fluids

Sniffing Out a Problem

Your parents probably taught you to have common sense. When it comes to your vehicle, common scents can also come in handy. Different smells may tell you about some conditions in your vehicle that need attention. For example, you know what rotten eggs smell like.  If you smell them around your vehicle, it means sulfur can't be far away. Here's a surprising fact: Gasoline has a little sulfur in it.  There's a device in your exhaust system that's supposed to convert it to something that doesn't pollute the atmosphere. That device is a catalytic converter.  If you are smelling rotten eggs, maybe your catalytic converter is wearing out.  But it could also be a problem with your fuel injectors.  Either way, something's rotten that should be repaired. Ever smell something sweet around your vehicle, maybe a little like pancake syrup? If you sniff out a little sweetness just when your engine is warming up or after you shut off your engine, you might be smelling some co ... read more

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Fluids

The Right Automotive Fluids for San Diego Drivers

All those automotive fluids can be confusing for San Diego drivers. Recent years have brought new grades of engine oil, types of transmission fluid, coolant and brake fluid. The right fluid protects your vehicle and helps it perform at its best. The wrong fluid won't work as well and could even cause damage.In addition to new grades of engine oil, many vehicles now leave the factory with synthetic oil. People in San Diego should always use the grade recommended by their manufacturer. All coolant, also called antifreeze, used to be green. Now there are several other colors of coolant sold at John's Automotive Care in San Diego. Each type is designed to protect the cooling system components that are particular to your vehicle. The wrong stuff can void your vehicle cooling system warranty and could even cause engine damage.Most passenger vehicles on San Diego roads today use either DOT 3, DOT 4 or DOT 5 brake flui ... read more

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Fluids

Super Slick at John's Automotive Care in San Diego: Synthetic Oil

When you get an oil change, it's always a safe bet to just use the type of oil the manufacturer recommends. But sometimes we're asked if we'd like conventional or synthetic motor oil. We glance at the price tags on the two options and choose the cheaper one. But in this case, the more expensive oil might be the better bargain for San Diego drivers. Conventional oil is made from petroleum. Its molecules form long hydrocarbon chains. Synthetic motor oil is either more highly refined petroleum or completely man-made. Its molecules are more uniform. This provides advantages over conventional motor oil. First of all, the molecular structure of synthetic motor oil makes it more slippery than conventional oil so it lubricates better. This translates to better wear protection for San Diego drivers, cooler operating temperatures and more engine power. Further, synthetic oil is more heat-resistant than conventional oil, and it doesn't vaporize ... read more

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Fluids

The Right Fluids for Your Vehicle

The current vehicles in the market have over a century of engineering behind them. They have evolved into complex and powerful machines. Developments in their engines, however, have coincided with advances in many other vehicle components, including the fluids.It's up to people in San Diego to always use the right type of fluid for their vehicle. Your service advisor and your owner's manual are resources for auto advice on exactly what types of fluid your vehicle needs. Improper fluids can damage your vehicle and void your warranty.Some of the fluids that have changed significantly in recent years are cooling system fluid, brake fluid, transmission fluid and motor oil. Each of these comes in many varieties now, and it's hard to know exactly which one your vehicle needs.Cooling systems were once made of iron, steel and rubber. One coolant could be used to protect all of these materials. But new cooling systems have components m ... read more

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Fluids

John's Automotive Care Service Tip: Why Synthetic Oil Is Good For Your Vehicles

Hello CA! Today's vehicle care topic is: Synthetic Oil vs. Petroleum Based Oil. Synthetic motor oil is a substitute for petroleum based oil. If you aren't currently using it, why not? Synthetic motor oil maximizes engine power and fuel economy. To see why, we'd need a microscope, so we'll have to settle for using our imaginations. The molecules of conventional motor oil are long hydrocarbon chains. Synthetic motor oil, on the other hand, has uniform, round molecules. Which is slipperier, a pile of pencils or a pile of marbles?Synthetic motor oil lubricates better because there's less friction. This results in myriad benefits: better wear protection, cooler operating temperatures, more power and better fuel economy. And synthetic oil doesn't sludge up like conventional oil so it prevents those small oil passages from clogging up. (We see that too often at John's Automotive Care in San Diego.)Some manufacturers are extending oil ... read more

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Fluids

Using Proper Fluids in Your vehicle

Today, John's Automotive Care is writing about the proper fluids for your vehicle. It's become more complicated with changes in automotive design and manufacturing. It's not that people in San Diego are confused as much as they don't realize how much things have changed in recent years. If you have questions about the fluids in your vehicle, please don't hesitate to stop by John's Automotive Care. You can find us on 6267 Riverdale St in San Diego, CA 92120.Just give us a call at 619-280-9315. Let's take engine oil. Twenty or 30 years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.It was common in those days to use a lighter weight oil in the winter when it's cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavi ... read more

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Fluids
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