10-09-2025, 03:21 PM

cmoc-bob

Senior Member

Join Date: Dec 2024

Posts: 103

Remember, GM EOS was only used to break in a motor back in the day, not to supplement your base oil.

Mixing anything into your base oil is playing Russian Roulette with the additive package already in the base oil.....

Lake Speed's "Motor Oil Geek" series on YouTube is very good.

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