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Other data from competitive oil brands is needed to make a decision on the value of this information.

Merkava 4 you are mobil bashing again. Was this not what got you in trouble in the past using a different handle? Grow up.

Hey dino no- What does your sludged pontiac guages read at highway speed?

How could the comparison be fair when the dino oil was run for 15,000 mile inervals? If you look close the heads on the taxi run with m-1 were not spotless. They looked like some varnish was present.

A few years back my wife took her Saturn in be inspected. For some unknown reason they decided to do an alingnment. Well the car was fine before this but after the unauthorized work the handling was very poor. I had to take it back to the Saturn dealer which was 150 miles away to get it fixed...

How about Amsoil high mileage motor oil. You know they will have to keep up now.

All this deposit sheild stuff is just like Castrol's anti sludge formula. Just change your oil at intervals that work for you and any sm oil will do the trick. Marketing hype.

The owners manual calls for 5w-30 but I think that using 5w-30 in the winter would be a great advantage for short trip driving. This engine is the 4.7 v-8. Funny how the larger hemi calls for 5w-20, probably for fuel efficiency. I really want to try the 5-20 because of the short trips we make...

I have had zero mechanical issues with this truck. I have owned all domestic makes and this dodge without question has been the most durable and reliable.

I would recommend Havoline 5w-30 sm conventional oil. I also have a 04 3.7 four by four with 37000 miles on the clock. Havoline has worked very well for me. If you change the oil every three to five thousand miles and use the super tech filter there is no need to use synthetics. These small six...

Well thanks for helping with the base question Pablo. The logic is not weak sir. Why is it illogical to ask a question and get a answer? Look you do not care for the post and that is fine. All you had to say was there was no evidence that mineral oil provided better valve train protection than...

Well Pablo I said it could or could not be the case. I was not picking on synthetic oil or dino oil. The post was not on false ground just on some thoughts. Maybe you should start a section based only on statistical data and real calculations. If you want this site to that complicated then go...

If you look at a large number of Uoa's the iron wear rates seems to be lower with mineral oil when compared to synthetic oil. Granted most mineral oil oci's are shorter than synthetic oci's but is there something in a good dino oil that offers at least as good or better valve train wear?

Well with sm conventional oil pricing rising you have to start looking at synthetic hard. The price gap is closing rapidly between the two. Yes the new sm oil's are good but you reach a point when the difference is only one to two dollars per quart then you have to say synthetic is the winner.

The way people drive on 95 would be enough coke any oil, even redline.

I ran sae-30 in my old briggs 12hp craftsman for 10 years and never had a issue. Briggs did not think using a multi-vis 10w-30 or 5w-30 was a good idea, it stated in the service manuals. I have a new 23 hp kohler command pro in a John Deere tractor. Kohler thinks a 10w-30 is best. I am using...

Look at your owners manual which should tell you when synthetic will work. On my new kohler it states at 25 hours you can use it.

And if 20w-50 is old school then why is Jimmy Johnson been so dominant the last few years? Yea, Rusty used the that old thin Mobil that problably made his dodge louder.

Well boys that is what the website quotes so take it however you choose.

Go to Hendrick motorsports and read that they use 5w-30 for qulification laps and 20w-50 for races . And of course the brand is quakerstate synthetic.