synthetic oil and lower idle vacuum

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08-26-02, 11:31 AM

jethro

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synthetic oil and lower idle vacuum

i just swithed to mobil 1 15w-50 oil and noticed that my idle vacuum changed from 15-16 in. Hg to about 14. it has stayed there the last few runs. car idles and runs fine with 67k miles. anyone with similar experience running synthetic?

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08-26-02, 04:44 PM

R Xplicit

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less resistance. i noticed it when i went to synthetic, as well, BUT, i also had a new engine with a SP....

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08-26-02, 06:10 PM

SilverRX7

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idle

My idle came down as well when I switched over, and it became smoother.

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