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By Counterman
It’s a common comeback: a failed starter covered in oil. Let’s break down why replacing it alone won’t fix the issue and how to prevent it.
The starter converts electrical energy into mechanical rotation to crank the engine. It relies on clean, dry internal components for proper operation. Engine seals, like valve covers, cam seals, rear main seals and oil pans, are designed to keep oil contained. When these seals fail, oil can leak externally and contaminate components mounted below, including the starter.
In some vehicle layouts, a rear main seal leak can travel along the bellhousing and reach the starter, though that depends on how the engine and transmission are positioned.
An oil-soaked starter can suffer internal damage to brushes and electrical contacts, leading to slow crank, intermittent operation, or no crank at all. Oil also attracts dirt, accelerating wear.
Heat plays a role as well. On vehicles where the starter is located near the exhaust, oil contamination can bake onto the housing and internal components, forming a varnish or sludge. That buildup can increase electrical resistance and further degrade starter performance.
In real world situations, a technician may replace the starter, only to see the new one fail prematurely. That often results in warranty returns, but the real issue is the unresolved oil leak continuing to contaminate the replacement unit.
Verify the starter concern, then inspect for oil contamination. Check above the starter for leaks from valve covers, cam seals, or rear main seals. ASE diagnostic logic emphasizes fixing the root cause before replacing components. The correct repair may involve replacing the failed gasket or seal. If immediate repair isn’t practical,
link hidden, please login to view can be used to help restore seal condition and reduce leakage. To apply, add it to the engine oil, do not overfill, run the engine to circulate, then drive normally. Most leaks stop within a few days of operation. If the starter is oil-soaked, the leak is the problem. Fix it, or the failure will come back.
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By Counterman
link hidden, please login to view announced the Cool Car AC Performance Booster, a five-minute service for quick lube and professional automotive service operators. The company said the Cool Car AC Performance Booster delivers an average vent temperature drop of 12.1 degrees Fahrenheit, lowers cabin humidity and speeds cooling without adding refrigerant. The proprietary thermo-conductive synthetic lubricant is designed to address oil fouling inside the A/C system. According to the company, the treatment improves heat transfer, reduces compressor friction and wear, and may extend compressor service life. The service works with R-1234yf and R-134a systems, does not require A/C certification, and uses a dedicated installation tool.
Cool Car AC Performance Booster Field Adoption
The Cool Car AC Performance Booster has expanded into nearly 500 quick lube locations. Dealers have reported take rates of 5% to 10% of car count. Operators report customer demand driven by peak summer heat and longer vehicle ownership, now averaging more than 12 years on the road. Stores also report additional revenue and repeat visits.
“In my career, I’ve rarely seen a product get this kind of reaction from the field,” said Joe Farr, sales director for Groove Technologies. “Technicians are excited to sell it. Store managers are telling us about customers who’ve left five-star reviews on their Jiffy Lube location websites. In some cases, brought in their second or third vehicle the same day to have the service performed. When you have both fast lube operators and customers this happy, you’ve got a winner.”
Field reports document temperature drops as high as 29 degrees, according to the company. Customers have commented that their A/C feels colder after treatment. One district manager reported a 22-degree drop during a store demonstration and said his team plans to position the service as a key seasonal offering during an expected warm summer across much of the U.S.
Pairing with Cabin Air Filter System
The Cool Car AC Performance Booster can be paired with Groove Technologies’ Qik-FIT Premium Universal Cabin Air Filter System. The company said the combination allows operators to offer an A/C performance package.
The Cool Car AC Performance Booster is available exclusively to professional automotive service providers through a Groove Technologies partnership with Service Champ.
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