Best Spark Plugs For Buick Lacrosse

The LaCrosse is the best-selling vehicle in its class, and it’s not hard to see why. It has all of the features you’d expect from a top-tier luxury car, such as heated front seats and a 10-way power driver seat with a memory function for adjusting lumbar support. The LaCrosse offers plenty of space inside its quiet cabin, complete with an eight-way power driver’s seat with a memory option for customizing backrest angle. With more than 350 horsepower on tap, this V6 engine produces plenty of thrust without being noisy or harsh on the ears.


2017 2018 2019 Buick LaCrosse Spark Plugs

Info/Engine 3.6L 6-cyl Engine LGX 3.6L 6-cyl Engine S LGX
OEM spark plug gap
Qty. needed 6 6
Change interval
Best spark plug
Popular choice


2010 2011 2012 2013 2014 2015 2016 Buick LaCrosse Spark Plugs

Info/Engine 3.6L 6-cyl Engine LFX Flex 2.4L 4-cyl Engine LUK
OEM spark plug gap 0.044″ (1.11mm) 0.036″ (0.91mm)
Qty. needed 6 4
Change interval 97,500 miles 97,500 miles
Best spark plug NGK 90117 ILTR6E11 Laser Iridium Spark Plug NGK 5476 ILTR5D Laser Iridium Spark Plug
Popular choice NGK 6509 LTR6IX-11 Iridium IX Spark Plug NGK 4344 LTR5IX-11 Iridium IX Spark Plug


2006 2007 2008 2009 Buick LaCrosse Spark Plugs

Info/Engine 5.3L 8-cyl Engine LS4 3.8L 6-cyl Engine
OEM spark plug gap 0.040″ (1.01mm) 0.060″ (1.52mm)
Qty. needed 8 6
Change interval 100,000 miles 100,000 miles
Best spark plug NGK 1465 IZTR5B11 Laser Iridium Spark Plug NGK 5599 ITR4A-15 Laser Iridium Spark Plug
Popular choice E3 E3.54 Spark Plug E3 E3.44 Spark Plug


Symptoms of Bad Spark Plugs

  • Reduced gas mileage.
  • Lack of acceleration.
  • Hard starts.
  • Engine misfires.
  • Rough idling.

The 2019 LaCrosse is the first Buick in decades to truly claim to be a luxury car. For years, GM has attempted to re-establish itself as a premium brand, and the 2018 LaCrosse is a great step toward accomplishing that goal. Despite the fact that it satisfies customers seeking a bigger, more comfortable, and more

Although it cannot compete with cars from Lexus and Lincoln in terms of quality and features, it competes fairly well in terms of style, comfort, utility, and sophistication. In other words, this is not Grandma’s 1990 Century.

Dan Hoffman

Dan is a co-founder of Engineswork. He knows everything about internal combustion engines. Ask your questions in comments down below this article - he will be glad to help you anytime.

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