All posts by autotronics

The Autotronics of ST Peter Guide to Proper Fluids for Your Vehicle

The automotive professionals at Autotronics of ST Peter would like to give St. Peter auto owners an update on some of the things happening in automotive fluids. You know, cars are becoming more sophisticated everyday – and fluids such as, oil, coolant and transmission fluid are becoming more specialized at about the same pace.

The Cleveland do-it-yourselfer has to be pretty careful so that they do not actually harm their minivan with the wrong type of fluid. That is why so many MN car owners rely on the advice of their knowledgeable Autotronics of ST Peter service specialist to not only get the correct family of fluids, but to suggest the formulation that is best for their car and their driving habits in the St. Peter area.

Let’s start with engine oil. Kasota auto owners who have been paying attention, will have noticed a number of new oil weights on the MN scene in the last several years. Modern engines are built to much tighter tolerances and have very complicated valve trains. The oil must be thin enough to lubricate complicated parts when the engine is cold. The weight of an oil is expressed in terms like 20-W-50 or 5-W-30. The car makers recommend the weight of oil for each vehicle they make. The recommendation is based on engine design. Your St. Peter service center will know what weight your car maker recommends – and it’s important to follow those recommendations. Your service advisor at Autotronics of ST Peter can also offer suggestions for special formulations and can tell you all about conventional and synthetic oils.

Antifreeze, or engine coolant, is another area that has become more complicated. For a long time, auto manufacturers only recommended a couple of different types of coolant. Now, several different formulations are needed because of the high-tech materials that auto makers are using to build the cooling system. Using the wrong type of coolant in your minivan or other vehicle can actually void your warranty, so it’s essential to get that right.

Transmission fluid is becoming specialized for St. Peter vehicles as well. New transmission designs have particular requirements that require specific formulations. Recently, new, somewhat confusing, standards for brake fluid have also been released.

Not too long ago, there was a good chance that all of the vehicles at your St. Peter house would use many of the same fluids. However, as automotive technology advances, the array of basic automotive fluids MN car owners need will grow. And, some of the formulations will cost a little more for St. Peter motorists. Fortunately, Autotronics of ST Peter will continue to update their training to keep pace with technology so that you’ll get the right fluids your car needs. It’s all part of the commitment we make to your driving peace of mind.

PCV Valve Replacement

Hello St. Peter auto owners, let’s talk about your often-unnoticed but extremely important PCV valve. The energy from exploding fuel is what powers your engine. But some of the vapors from the explosions escape into the lower part of the engine, called the crankcase. The crankcase is where your engine oil hangs out. These gases are about 70% unburned fuel. If the gases were allowed to stay in the crankcase, they would quickly contaminate the oil and turn it to sludge. Cleveland folks know that sludge is one of the biggest enemies of your engine, clogging it up, eventually leading to expensive failures. Also, the pressure build up would cause seals and gaskets to blow out. Therefore, these gases need to be vented out.

Pre-1963, gasoline engines had a hose that let the harmful fumes vent out into the air. In 1963, the federal government required gas engines to have a special one-way valve installed to help reduce dangerous emissions. (Can you imagine how polluted our Cleveland air would be if every car had been releasing those poisonous fumes for the last fifty years?) Diesel engines are not required to have these valves.

The positive crankcase ventilation, or PCV, valve routes crankcase gases through a hose and back into the air intake system where they are re-burned in the engine. Fresh, clean air is brought into the crankcase through a breather tube. It’s really a pretty simple system, but it does the job. The re-circulating air removes moisture and combustion waste from the crankcase, preventing sludge. This extends not only the life of your oil, but the engine as well. The PCV relieves pressure in the crankcase, preventing harmful oil leaks.


Eventually, the PCV valve can get gummed up. Then it can’t move enough air through the engine to keep it working properly for St. Peter car owners. If the PCV valve is sticking enough, you could have oil leaks, excess oil consumption and a fouled intake system. If you experience hesitation or surging or an oil leak, it may be a sign of PCV valve problems. Your auto manufacturer’s owners’ manual may give a recommendation for when the PCV valve should be replaced – usually between 20,000 mi/32,000 km and 50,000 mi/80,000 km. Unfortunately, some auto manufacturers don’t list a recommendation in the manual, so it can be easy to overlook.

Many PCV system problems can be diagnosed with an automotive analysis by your knowledgeable Autotronics of ST Peter tech. Fortunately, PCV valve replacement is both quick and inexpensive at Autotronics of ST Peter. Proper oil changes will greatly extend the life of the PCV valve. Skipping a few recommended oil changes can allow varnish and gum to build up in the valve, reducing its efficiency. So now when your St. Peter service technician tells you its time to replace your PCV valve, you will know what he’s talking about. If you have had your car for a while and this is the first you’ve ever heard of a PCV value, ask your service advisor to check yours out or call Autotronics of ST Peter at 507.934.9290.

Exhaust Service At Autotronics of ST Peter In St. Peter

Whenever they hear the term “exhaust service,” most St. Peter car owners think about exhaust pipes and mufflers. Well, actually, exhaust service at Autotronics of ST Peter is a lot more comprehensive these days. For example, catalytic converters were mandated in 1976 and on-board emission control computers in 1990. Governmental emissions requirements have forced vehicle manufacturers to come up with much more sophisticated ways to comply with environmental regulations.

Exhaust service has really become exhaust and emissions service. High-tech computer controlled emissions devices are now a big part of exhaust service. Because it is so sophisticated, your vehicle manufacturer recommends you have your emission system checked out by a qualified St. Peter exhaust technician regularly to make sure everything is working right – usually every 6 months or 10,000 miles/16,000 kilometers.

If your Check Engine light comes on, especially if it’s flashing, get your car looked at right away. Technicians at Autotronics of ST Peter in St. Peter handle emission problems everyday. You might have exhaust or emissions trouble if your car is difficult to start, runs rough, is noisy or smoking. Call Autotronics of ST Peter at 507.934.9290 to schedule an appointment if you experience these problems.

Let’s review the exhaust system. We will start from the top and start with the exhaust manifold. That is the critical part that attaches to the engine and collects the exhaust from the cylinders and directs it into the exhaust pipe. Exhaust gaskets help seal the connection with the manifold and various other joints along the way. If the manifold is cracked or loose, or a gasket is leaking, detrimental gases could escape into the passenger compartment, where you ride. Carbon monoxide can be deadly, so it is important that your exhaust system doesn’t leak. The exhaust pipes connect the various components. They can rust or be damaged by a rock, so they need to be inspected periodically.

Next is the catalytic converter. This part looks like a muffler. It changes chemicals that are dangerous to your health and our St. Peter environment into harmless carbon dioxide and water. It doesn’t require any maintenance itself. But eventually they wear out. St. Peter motorists find this out when their car fails an emissions inspection.

Now the muffler. Its main job is to quiet engine noises. Mufflers work by either absorbing or baffling sound. And you can actually customize your car’s sound with different mufflers – anything from whisper quiet to bad-boy rumbley. Rusted or road-damaged mufflers can leak and need to be replaced right away. Talk to your knowledgeable Autotronics of ST Peter service professional.

The exhaust system is attached to the minivan by a series of hangers and clamps. These fasteners hold the system in place. When hangers come loose or break, hot exhaust components can touch and melt wires, hoses and lines.

Finally, we end at the tailpipe. This is the final outlet for the exhaust. These can be plain-Jane or pretty flashy. Also, the oxygen sensors monitor the oxygen content of the exhaust so the engine control computer can adjust the fuel-to-air mix to keep the car running right.

Exhaust and emissions service at Autotronics of ST Peter in St. Peter covers plain old pipes and high-tech computers. It impacts everything from life and death safety due to exhaust leaks, to fine-tuning the sound of your ride.