blkstang06

Great point, there is no problem with synthetic from day one. oil filtration is more crucial and overlooked quite often , these are high performance engines even in a unmolested state! spend the extra on a Ford Racing filter or equivalent... with all the mods people do many never install a oil cooler probable should be the first modification ...

GottaHaveIt

Some say that with synthetic you cannot see te oil well get dirty sio thier thought is that the oil does not clean the engine? and would using this when the car is taken in for regular service be allowed. last what exactly are the benifits of using synthetic oil on a new engine ? THANK-YOU !

GottaHaveIt

I waited to long to post Thats for the articles blkstang06

CircuitBreaker

Synthetics like Mobil 1 do have detergents to help keep the engine clean. If you use synthetic from the beginning, the oil won't look very dirty upon checking it being it won't leave deposits behind like petroleum oils will and because they oxidize at a much slower rate. Synthetics have a higher thermal stability, flow better at extreme temperatures and provide a more rapid buildup of oil pressure reducing wear on engine internals on cold start ups. They also allow extended drain intervals. Full synthetics cost more but are worth it.

theedge67

A Ford Racing filter is in my opinion a bad idea if your looking for good filtration. The filter trades off filtering ability for easy oil flow, increasing HP. The filter will NOT filter the very small particles as well as the standard Motorcraft filter.

If your looking for the best filters, I recommend the Mobil1 filters, they are synthetic media and flow more oil AND filter smaller particles.

metroplex

FL-820-S includes a silicone ADBV which will remain flexible MUCH longer than nitrile rubber, and will withstand much higher temperatures w/o breaking down. IMHO, for $3+ it yields a lot of bang for the buck. I change my FL-820-S every 6k or 1 year, whichever comes first.

theedge67

Metroplex, keep in mind we are not all engineers here...part numbers do no good if we don't know what the heck your talking about...so I'll translate for the unedumacated of us here

FL-820-S = Motorcraft Oil Filter
ADBV = Anti Drain Back Valve

Also, for reference what filters use the nitrile rubber so we can stay away?

metroplex

The easiest way to check if your filter has a silicone or nitrile rubber ADBV is by looking at the "holes" in the filter next to the threads. If you see a black object/rubber ring underneath the holes, that is nitrile rubber. If you see a reddish/orange rubber ring underneath the holes (like on the FL-820-S), then it is silicone. Alternatively, you could sniff the ADBV. If it smells like nitrile rubber (remember carburetor airhorn and spacer gaskets?) then its obviously nitrile rubber! The red/orange silicone ADBV doesn't have a unique scent AFAI can tell.

I have 2 modular engines here that both use FL-820-S oil filters and FG-986B fuel filters. It is a good idea to memorize the common replacement parts in case you find them on sale or come across a purchase opportunity. The GT (4.6 3V) would use a common oil filter (FL-820-S) but has its own air filter (FA-1773) and own fuel filter (FG-1083) along with a unique cabin air filter (FP-53).