Mobil 1 FS European Car Formula Full Synthetic Motor Oil 0W-40
- Thread starter quexpress
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Full Synthetic
It stands for full saps
The FS stands for "for suckers" as the new formula isn't as good as the old one but people still think it is. All jokes aside it's a phenomenal oil and I don't no think twice about running it on my Euro car. It had a good list of approvals as well which is all you need to worry about.
From Mobil:
F-uel S-aving?
edyvw
$50 site donor 2025
Highly doubt considering HTHS.
It would say "Resource Conserving" in the API donut if it were fuel saving.
I've always thought it was the abbreviation for "Full Saps".
OVERKILL
$100 Site Donor 2021
There's been a ton of debate over it ever since it started showing up. It's either Full SAPS or Full Synthetic, one of the two. Given the presence of the ESP products, Full SAPS may make more sense, but Mobil hasn't answered the question when asked IIRC.
I couldn’t see how it’s Full Synthetic, isn’t all Mobil 1 brand full synthetic? Plus it already says that on the label spelled out, why add a little cryptic notation as well? They don’t do that for any of the other Mobil 1 products do they?
Out of the possibilities mentioned only Full SAPS makes any sense. No 40-grade is going to be Fuel Saving either, plus none of the AFE products have a little FS on them.
Out of the possibilities mentioned only Full SAPS makes any sense. No 40-grade is going to be Fuel Saving either, plus none of the AFE products have a little FS on them.
Thanks a lot everyone! Much appreciated! 
I e-mailed the tech line. And asked if "FS" stand for Full Synthetic etc and/or what it meant? According to them "FS" is an internal delineator that differentiates between products. They absolutely never answered the question. Typical corporate response.
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