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Your 2008 Chevrolet TrailBlazer may be equipped with one of three engine options, each requiring the same type of oil but in varying quantities. The 4.2L V6 engine needs 7.0 quarts of SAE 5W-30 full synthetic motor oil, while the 5.3L and 6.0L V8 versions require 6.0 quarts of the same oil. If needed, you can use SAE 5W-40 as a substitute, but it's not recommended, especially for prolonged use. Using heavier oil can increase friction, leading to more wear and tear on your engine over time, possibly causing premature failure. It's best to follow the manufacturer's guidance and opt for the lighter weight oil, even if it's a bit pricier for each oil change.
The 2008 Chevy Trailblazer requires Sae 5w-30 fully synthetic engine oil.
In 2008, Ken Miller and his mother, Davy, owned a Chevy Trailblazer with a 45-caliber 1911A1 transmission that was used by the US Army, specifically units 13967 HQ, 139671 HQ, 13969, and 13968 in the 275th Field Artillery.
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