Ron Ananian, The Car Doctor - Classic Car Doctor - September 19, 2015 - Hour 2

“Steel lines” refers to rigid metal tubing used for fluid delivery (commonly fuel or other underbody lines). The host says GM trucks and SUVs can suffer from these lines rusting and splitting, which can become a major safety and drivability issue.

The host frames the discussion around a “gasoline issue,” meaning a current concern or uncertainty about fuel supply/quality and what consumers should do. In this segment, the focus is whether cheaper, unbranded gasoline is acceptable compared with name-brand fuel.

In many regions, fuel is reformulated seasonally. The “summer to winter blend change over” adjusts gasoline blends to suit colder or hotter weather, which affects how the fuel vaporizes and how well it burns.

Oil drain intervals are the scheduled mileage/time between oil changes. Extending them too far can let oil degrade and sludge form, which can contribute to engine wear and, in some cases, increased fuel consumption or other running issues.

SHELLV Power Nitro premium gasoline is the specific Shell product the host recommends. The host claims it contains stronger cleaning additives that reduce harmful deposits left behind on intake valves, which they say helps engine longevity—especially for cars that sit or see stop-and-go driving.

Carbon deposits are buildup of combustion-related residue on engine surfaces. The host argues that better fuel additives provide “carbon protection,” reducing these deposits—particularly relevant for engines that experience lots of idling, stop-and-go, or long parking periods.

Intake valves are the engine’s valves that let the air-fuel mixture enter the combustion chambers. Fuel additives can help reduce deposits that build up on these valves, which can otherwise affect airflow and engine efficiency over time.

An additive package is the blend of chemicals mixed into gasoline to improve performance and protect engine components. In this segment, the host focuses on additives that reduce deposit formation and improve cleaning.

The crankshaft sensor measures the crankshaft’s position and speed, which is essential for engine timing. A faulty crankshaft sensor can cause hard starting and rough running because the computer can’t synchronize ignition and fuel properly.

A vacuum line or vacuum-related component helps route engine vacuum to control systems like emissions and certain actuators. If a vacuum component fails, it can cause drivability issues such as rough running or starting problems.

A cam sensor monitors the position of the engine’s camshaft(s) so the engine computer can control ignition timing and fuel injection. If it fails or reads incorrectly, the engine can misfire, run rough, or be hard to start.

“Engine light” is a common way people refer to the check engine light. It indicates the engine control system has detected a problem that needs diagnosis.

A misfire happens when one or more cylinders don’t ignite properly. That can lead to rough idle, hesitation, and an engine that may run poorly when hot, often accompanied by diagnostic trouble codes and sometimes a flashing check-engine light.

Diagnostic trouble codes (DTCs) are stored by the car’s ECU when it detects abnormal sensor or engine behavior. Mechanics use these codes to narrow down whether the issue is ignition, fuel, timing, or something like a head gasket-related problem.

A timing chain synchronizes the crankshaft and camshaft so the engine’s valves open at the correct time. If the chain is stretched or timing is off, the engine can run rough or fail to start, and it may require replacement along with related components.

A fuel system fault means the engine isn’t getting the right amount of fuel (or not delivering it correctly) to support combustion. Common causes include a failing fuel pump, clogged fuel filter, or a problematic fuel injector. Fuel delivery issues can trigger misfires and rough running.

The host’s advice is essentially a “prove it” approach: when someone claims they know what’s wrong, the next step is confirming whether the proposed fix actually resolves the problem. In car-buying terms, this mindset aligns with a pre-purchase inspection (PPI), where you verify condition and likely issues before committing.

“BG motorfly” appears to be a brand/product used as a chemical additive or service treatment intended to address engine or fuel-system issues. The key point in the discussion is whether using that product will actually solve the misfire/driveability problem. Additives can sometimes help specific problems, but they’re not a guaranteed cure for every cause of misfiring.

An ignition coil is an electrical transformer that boosts battery voltage to create the high voltage needed to fire the spark plugs. If a coil is weak or failing, the engine can misfire, especially under certain conditions.

A head gasket seals the engine’s cylinder head to the engine block, helping contain combustion pressure and keep coolant and oil from mixing. If it fails, coolant can leak into a cylinder, leading to misfires and rough running—often most noticeable on a cold start.

A spark plug creates the spark that ignites the air-fuel mixture in the engine’s cylinders. A worn or fouled spark plug can cause misfires, which show up as rough running, stuttering, or flashing warning lights.

A pressure tester is a tool used to pressurize the cooling system to check for leaks or gasket failure. By raising pressure to the radiator cap’s rating and letting it sit, you can see whether pressure drops or coolant enters where it shouldn’t.

A cold misfire is an engine misfire that happens right after starting when the engine is cold. This pattern can point to coolant intrusion (for example from a failing head gasket), because leaks may be more likely to occur or be detectable after sitting.

Misfire faults are diagnostic trouble codes indicating the engine control unit detected one or more cylinders not firing correctly. The speaker contrasts these with cam correlation codes, suggesting different code patterns can occur depending on the underlying cause.

Cam correlation fault codes are diagnostic trouble codes that indicate the engine control unit sees the camshaft timing not matching what it expects. This can happen with timing-related issues, but the speaker notes these codes may appear even when the symptom is misfire-like.

Advanced Order Parts is referenced as the source of a gift card promotion during the episode. It appears in the context of a listener giveaway rather than as an automotive technical topic.

This is a maintenance recommendation about brake service: replacing brake hardware during brake jobs. It’s a practical shop guideline intended to improve brake component fit and function.

The Chrysler PT Cruiser is a compact, retro-styled car that’s known for having lots of electrical modules that can interact in confusing ways when something in the ignition or body electronics goes wrong. In this call, the host is troubleshooting a no-start/no-crank and then follow-on electrical symptoms that point to module communication issues.

The ignition switch is the electrical switch that tells the car’s control systems what key position you selected (ACC vs RUN) and enables starter operation. If it fails or has worn contacts, you can get symptoms like no-crank/no-start, odd radio behavior, or a dead/unstable instrument cluster.

“No start, no crank” means the engine won’t start and the starter won’t engage when you turn the key. That usually narrows the problem to the ignition switch/lock cylinder circuit, the starter control path, or related immobilizer/body-electronics logic rather than fuel or spark.

A scan tool is a diagnostic device that reads fault codes and communicates with the car’s electronic control modules. For intermittent electrical issues—like losing the instrument cluster or having radio/ignition behavior tied to key positions—you often need a scan tool that can talk to multiple modules, not just one.

In modern cars, “modules” are electronic control units (ECUs) that manage different functions—like body electronics, instrument cluster, radio/infotainment, and starting/ignition logic. When one module is misreading key position signals or can’t communicate properly, you can see cascading symptoms across multiple systems.

Disconnecting the battery can reset (reboot) the car’s electronic control units, clearing temporary states and forcing the system to reinitialize. Here, the host suggests it stops “garbage” inputs and returns the cluster/computers to normal operation.

A data bus is the communication network that lets different vehicle modules (ECUs) exchange information. The host is describing how a scan tool can check whether all modules are “awake” and talking on the bus.

Motor oil is the lubricant inside an engine that reduces friction and helps carry away heat. In this segment, the hosts treat it as a key maintenance item and discuss how oil formulation and testing affect engine protection.

Pennzoil (spelled as “Penns Oil” in the transcript) is a motor-oil brand being discussed as the company behind new product development. The hosts talk about how much chemistry and testing goes into bringing a new oil to market.

Shell Technology Center is referenced as the research facility where chemistry engineers work on motor-oil development. It’s mentioned to establish the technical background behind the oil formulation discussion.

Bench top tests are controlled laboratory evaluations of an oil’s performance on test rigs rather than in a vehicle. They’re used to screen and validate properties before an oil is approved for real-world use.

Taxi fleets are large groups of vehicles used for commercial transport, typically driven hard with frequent starts and stops. Using them to test oil helps validate performance under demanding, real-world conditions.

Law enforcement fleets are vehicles operated by police departments, often with aggressive driving patterns and long idle/low-speed time. Testing oil in these fleets helps assess durability in harsh operating conditions.

The “API donut” is the certification mark on motor oil that indicates the oil meets the American Petroleum Institute (API) performance standards. It’s a quick way to confirm the oil is rated for the kinds of engine protection requirements automakers specify.

The American Petroleum Institute (API) is the standards organization behind the performance ratings shown on motor oil packaging. When an oil carries API approval, it has been evaluated against API requirements for engine protection and durability.

Oil drain interval recommendations are the change schedules provided by the vehicle manufacturer (often in the owner’s manual). They’re based on the engine design and expected operating conditions, so following them helps ensure the engine stays protected between changes.

Combustion byproducts are the unwanted materials created when fuel burns in the engine. Engine oil helps manage them by carrying contaminants away and reducing the buildup that can lead to deposits.

Sludges and varnishes are deposits that form when oil breaks down and contaminants build up inside an engine. They can restrict oil flow and increase wear, which is why correct oil change timing and oil quality matter.

SAE (Society of Automotive Engineers) requirements are part of how oil performance is specified for vehicles. The idea here is that if an oil meets the relevant SAE/industry standards for the vehicle, it’s a baseline for safe lubrication.

Viscosity grade describes how thick (or thin) an oil is at different temperatures, which affects how quickly it flows to protect engine parts. Choosing the correct viscosity grade is critical because cold oil needs to reach moving surfaces quickly, while hot oil must still provide adequate lubrication.

The API “doughnut” refers to the American Petroleum Institute certification mark on motor oil packaging. It indicates the oil meets minimum industry standards for performance and suitability for certain engine requirements.

Penns Oil is referenced as the speaker’s brand connection while discussing real-world fleet usage and high-mileage cars. The point is that their observations come from seeing older vehicles accumulate many miles.

A “high mileage formulation” is a motor-oil blend designed for older engines that have accumulated wear and may develop oil leaks or burn oil. It typically includes additives meant to help seal rubber components and reduce oil loss as the engine ages.

“Full synthetic” refers to motor oil made from synthetic base stocks rather than conventional crude-derived oil. Synthetic base oils generally handle heat and oxidation better, which can help maintain protection over time.

“Oil burnoff” is oil that gets lost because it evaporates or is consumed during engine operation. As engines age, oil can be more likely to escape through seals or be burned in the combustion process, reducing the oil level.

“Volatility loss” describes how easily an oil’s lighter components evaporate under heat. Lower volatility helps the oil stay in the engine longer, which reduces oil consumption and helps maintain lubrication.

High mileage oil is a motor oil formulated for older engines, typically with additive packages aimed at reducing oil leaks and controlling wear in engines that have more internal clearances. The host also links it to occasional white smoke concerns when switching oils.

White smoke from the exhaust can indicate that something other than normal combustion is happening—commonly oil or coolant entering the combustion process. The transcript frames it as a reason to choose high mileage oil when changing lubricants.

Pure Plus technology is a refining approach that starts with natural gas to create a synthetic base oil, rather than relying on crude-oil-based feedstocks. The segment describes it as building the base oil from smaller hydrocarbon components and then blending in additives for performance.

In motor oil, additives are chemical ingredients blended into the base oil to provide specific functions like wear protection, detergency, and viscosity control. The transcript emphasizes blending “the very best additives” after producing the base oil.

Penzoil (Penzoil dot com) is being promoted here as the oil brand that “engineers the oil and designs the oil.” The hosts are framing it as a choice that matters because motor oil formulation affects how well an engine is protected.

The Toyota Prius is a hybrid car known for prioritizing fuel efficiency by using both a gasoline engine and an electric motor. It often comes up in conversations about routine maintenance because owners may wonder how oil changes work compared with non-hybrid cars. That’s why it’s a common topic when discussing what it’s like to live with and maintain a Prius.

A brake inspection is a diagnostic check of the brake system to assess wear and potential problems before they become unsafe or expensive to fix. When someone is quoted “per wheel,” it usually means the shop will inspect each wheel’s brake components individually.

Corrosion is the gradual deterioration of metal caused by chemical reactions, often accelerated by moisture and road salt. In car service letters, corrosion usually points to rust-related structural or component issues that may need repair or warranty coverage.

Undercoating is a protective coating applied to the underside of a vehicle to help slow rust and corrosion from road spray, moisture, and salt. When a manufacturer letter mentions undercoating, it’s often tied to a specific corrosion-prevention or repair program.

Volkswagon (Volkswagen) is the automaker at the center of this EPA enforcement story. The segment describes allegations that Volkswagen diesel cars used software to manipulate emissions controls during normal driving versus emissions testing.

In modern cars, software controls engine and emissions behavior by reading sensors and commanding actuators. Here, the allegation is that Volkswagen programmed diesel vehicles to alter emission-control operation depending on whether the car is in normal driving or an emissions test.

The US EPA (Environmental Protection Agency) is the U.S. government agency that regulates emissions and enforces the Clean Air Act. In this story, the EPA is alleging Volkswagen used software to manipulate emissions behavior during testing.

A defeat device is software or hardware that reduces the effectiveness of emissions controls under certain conditions, often to pass regulatory tests. This segment describes the alleged behavior: emissions controls are turned off during normal driving and turned on during testing.

Emission controls are the systems that reduce pollutants from a diesel or gasoline engine, such as exhaust aftertreatment and related sensors/valves. In the allegation, software switches these controls off during normal driving and on during emissions tests.

Civil penalties are monetary fines imposed by regulators for violations of laws or regulations, rather than criminal punishment. The segment cites a per-vehicle civil penalty amount tied to noncompliance with federal clean air rules.

The Clean Air Act is the U.S. federal law that sets air-quality standards and regulates emissions from vehicles and other sources. The segment references it as the rule set Volkswagen allegedly violated.

The Volkswagen Bus is a classic, people-moving van associated with Volkswagen’s long-running lineup of spacious, family- and group-oriented vehicles. It’s significant in automotive discussions because it’s often referenced as a distinctive platform with a strong enthusiast following and a wide range of production years. It may be mentioned in a podcast when talking about Volkswagen’s corporate communications or vehicle-related issues.