accel
Well-Known Member
Old or new oil - does not matter. There's plenty of info here at the forum if one wants to google/search. There was some very active and resourceful time until TSB from ford came in basically saying - it is not harmful, will not fix, will not tell you what it was.pity we don't have a control group which is add a bottle to OLD engine oil. As written there are 2 variables at play. New oil AND the additive. It would be interesting to see if after the next 3 oil changes (no additive) when/if the tick comes back.
Potential issue with ceratec - you may have sediments in the engine. No one with mustang reported this, but I did find some at european car groups on this topic. No issues with the engine, but they did find sediments while disassembling.
My experience with tick starts back to pre-TSB time, when you could replace your short or even long block. I had it on my new engine before the first oil change, then got short block replaced - no tick for extended period of time, then tick came right back as a result of oil change - right away, before I could even exit ramps.
My personal theory is that _some_ coyote engines are very sensitive to even short term oil starvation. This starvation may lead to the tick whatever the nature of the tick is.
Read about Mos2 friction modifier at liqui moly site. Its original development was attributed to war time aircraft piston engines. It was developed for a situation when engine looses oil (oil starvation) - to give pilot extra time to get out of this dangerous situation. In other words, it handles oil starvation situation. Liqui moly considers ceratec as mos2's successor.
My personal feeling is that in order to _prevent_ tick it is important to have either mos2 or ceratec in _old_ oil _before_ the oil change. I mean, it has to be there for some time before in order to build that protective layer. In this situation oil change process is supposedly safer and less likely introducing the tick.
It you have the tick already, then it is not going away - the only additive that quiets it is ceratec. Mos2 will not do this.
Another confirmation to this theory is that according to euro forum members tick is not an issue in europe. They use Castrol Magnatec as OEM oil in there. Now, read regarding magnatec's features. In marketing terms they promise that the oil always sticks to metal surfaced and never leaves metal surfaces dry even after very extended stay. I.e. - sticks as a magnet, thus - magnatec, although the nature of this stickiness is actually different. SOund like this kind of a feature would also help during oil change process.
I'm concerned regaridng long term ceratec usage and plan on switching to this castrol magnatec thing. Right now I add one full ceratec bottle to oil, that's gen2, but plan on reducing this amount from 300 to 150 or even 100ml, observe and make further decisions.
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