Best 8Milelake Engine Tools in 2026

【5 Testing Holes】Autool SPT 306 has 5 testing holes, 1 standard test hole, 4 test hole. You can test 5 spark plugs at the same time, simulating real speed and digital control, which greatly improve the test accuracy and work efficiency. You can use five spark plugs or just two or three to detect the spark plug. It depends on your actual situation.

【Adopt High Tech】Autool SPT360 is a digital high frequency tester for testing the performance and strength of spark plugs with a frequency up to 9000 rpm. Come with digital color screen display which can see the real speed and adjust the real rpm on time to get more accurate measurement results.

【Simply to Operate】Firstly, Just insert the new and old spark plug into the hose. Secondly, plug the power adapter into the rear of the power port, then the machine will be turn on. Finally, turn on the power switch and press the up and down buttons to adjust the operating frequency.

【Why Do You Need It?】By comparing the spark intensities of the two spark plugs,judge the performance and ignition intensity of the spark plugs,and replace the broken spark plugs in time. Spark plug tester has two spark plug socket, you could compare and test to make an accurate judgment at the same time. The design of the protective cover can prevent you from the risk of electric shock during the test,which effectively guarantees your safety during the operation.

【Widely Application】12V Gasoline vehicles car spark plugs, 100V-240V input voltage . used to test 12V gasoline vehicles car spark plugs (a diameter of 12mm).Universal for spark plug tests crankshaft engines and motorcycles.

【Time-saving & Efficient】The working principle of the car spark plug tester is to test the performance of the spark plug by simulating the work of the engine. Suitable for spark plugs of most 12V gasoline cars.

Carbon Deposition- There are some hydrocarbon olefin residues attach on engine intake, cylinder when fuel burn in engine not completely. These residues change into hard black shell in high temperature condition , that called carbon deposition. Carbon deposition will decrease air-fuel ratio, cut down engine output power, increase fuel consumption, engine drastic shake on idle status...all the thing will hurt engine deeply. So normally we should clean carbon deposition after every 40000-50000 KM.

AUTOOL HTS558- A special machine for engine Intake pipe and intake valve back side clean. Close intake valve, then spray walnut powder into engine intake via air pump(not include), meanwhile HTS558 will recycle walnut powder by vacuum. This is a closed loop.  Walnut powder will impact carbon deposition on inner wall of intake pipe. After thousands of impact,  carbon deposition will be clear thoroughly.

Chemical cleaning agent will corrodes pipe and shortens the lifetime of engine. Walnut powder is pure natural polish material. It show high performance in  hardness, anti-pressure and wear-resisting. Walnut powder hardness was lower than metal but higher than carbon deposition. Take these advatages, AUTOOL HTS558 will clean clean intake pipe and back side of intake valve thoroughly but no damage.

【4 System Diagnosis & 5 Special Service Resets】AUTOOL CS603 automotive OBD2 scanner diagnostic scanner find out the failure of the car in engine system, transmission system, ABS system and SRS system. In addition, the diagnostic scanner provides 5 special service resets for oil Reset, EPB Reset, SAS Calibration, ABS Bleeding, and Throttle Learn.

【Full OBD2 Functions & AUTOVIN Function】The automotive diagnostic test & measurement tool supports complete OBDII functions including reading codes, erasing codes, data stream, I/M readiness status, read live data stream, view freeze frame data, O2 sensor test, on-board monitor test, read vehicle information, active test. Also features AutoVIN and AutoScan for fast and accurate identification of your vehicle.

【One-click Lifetime Free Updates】The diagnostic scan tool is performed with the menu driven and simple operation solution, which save your headache to choose the multi-functions. One-click lifetime updates over WiFi or USB will keep the software current and the coverage addition constant.

【ALL System Diagnosis & Five Special Service Resets】AUTOOL CS605 OBD2 scanner car code reader provides an economy solution for the professional automotive technicians and DIY fans to find out the failure of the car in all diagnostic systems for PCM (Drive System), Chassis system, BCM (Body System) and Electrical System. In addition,it provides 5 Special Service Resets for oil Reset, EPB Reset, SAS Calibration, ABS Bleeding, and Throttle Learn.

【10 Modes OBDII Function & AUTOVIN Function】The full systems diagnostic scan tool supports complete OBDII functions including Reading Codes, Erasing Codes, Data Stream, I/M Readiness Status, Read Live Data Stream, View Freeze Frame Data, O2 Sensor Test, On-Board Monitor Test, Read Vehicle Information, Active Test.The AUTOVIN function enables an easy and quick access to the vehicle diagnosis with VIN information.Live data stream in graphic makes a direct and intuitive vehicle diagnosis.

【Multi-Language Options & Humanized Design】The engine fault diagnostic scanner supports multiple languages including but not limited in English, Portuguese, Hungarian, Russian, Polish, Dutch, Italian, Spanish, French, German,Turkish, Simplified Chinese, Traditional Chinese.Unmatched 7 Inch large TFT color display makes your reading easier and more easier.Patented Design of The Device Handle ensures the users to grip it more ergonomic and easy operate and control,easy to carry around.

【Deep Removal of Carbon Deposits】AUTOOL HTS558 Intake Valve Cleaner can deeply remove the highly sticky carbon deposits on the intake manifold, intake & exhaust valves to help the engine keep health（ Solve the problems of unstable idling, insufficient fuel combustion, and reduced air-fuel ratio).

【Safe & Efficient】The Intake Pipe Valve Cleaner Machine uses walnut sand as cleaning agent. A large amount of pores on surface of walnut sand which provide super adsorption capacity, non-toxic and corrosion preventive. As an eco-friendly pure natural polish material, walnut sand has advantages of hardness, pressure resistance and wear resistance. It can clean the intake pipe and backside of the intake valve thoroughly without pipes damage and corrosion.

【Easy to Operation】Turn off the engine before cleaning, then turn the crankshaft to close the intake valve, and use a high-pressure air pump (not included) to inject walnut powder (not included) into the intake port of the engine. The built-in dust filter of Automotive Engine Carbon Deposition Cleaner help to separate and recover walnut sand from carbon deposits, thus forming a complete cleaning closed loop.