is ROYAL PURPLE synthetic oil 10W-40 any good to use in the 440 ?

[rav440]

is it worth using ? i was told one you use synthetic oil in a motor you cant use standard oil ever again . is that true ?


thanks RANDY

[4aThrill]

 

[375instroke]

Where do people get this stuff from?

[4aThrill]

which part Royal Purple oh we get that at the auto part store  or the part well people talk then things get all turned around and so on and so forth thats one way how we come up with questions like this 

[firefighter3931]

i was told one you use synthetic oil in a motor you cant use standard oil ever again . is that true ?

thanks RANDY

Randy, that is absolutely not true. A fresh engine should be broken in for the first few thousand miles on regualar dino oil to allow the rings to properly seat up but after that you can safely switch to synthetic lube.

Personally, i prefer dino lube with an EP additive and change it at 3k religously. As long as you keep clean oil in your bulllet you should never experience an oil related failure. 


Ron

[Challenger340]

Remember, that with Synthetics, any "small" Oil Leak, or even a "sweat", will usually become a proper actual "Bigger Leak", or a "Leak" Period !

It's because Synthetics are much slippery'r, they get through where Dinosaur Oil doesn't.

[flyinlow]

Don ,t know about Royal purple, but I use  Castrol syntec 10w40 plus comp cams breakin lube in my 446 since breakin was over.

Too many advantages to synthetic oil to not use it in a performance application.

[r_biccum]

hmmm  I did not know synthetic finds the leaky spots easier, good tip 

[NorwayCharger]

Remember, that with Synthetics, any "small" Oil Leak, or even a "sweat", will usually become a proper actual "Bigger Leak", or a "Leak" Period !

It's because Synthetics are much slippery'r, they get through where Dinosaur Oil doesn't.

Wonder why all the myths about synthetic oil is still alive

http://www.youtube.com/watch?v=L-sz-ZfnhSw&feature=PlayList&p=C7CCD76EC16C53E6&playnext=1&playnext_from=PL&index=7 Debunking Myths About Synthetic Motor Oils

Try google "Synthetic Oil Myths"

[flyinlow]

I sent an email to Mythbusters to see if they will do an episode on synthetic oil myths.   

[NorwayCharger]

I sent an email to Mythbusters to see if they will do an episode on synthetic oil myths.   

THAT i would like to see 

[GL0169]

just to let you know from someone who has been daily driving thier GENERAL LEE for 23 years -about 3 years ago i changed to royal purple from valvoline- my car has never run better -even after the oil was in the car for a whole year- -yes the small leak might show up more - but then i knew what i need to fix or work on - now i use royal purple in my engine -oil filter - power stering -purple ice in radiator- transmission- rear end and keep a bottle ofroyal purple maxfilm in the trunk  -and  yes its a 440 magnum -posi rear end -727 trans- i am pleased with royal purple - my car is running cooler than the other side of the pillow- more power to me  

[Brass]

just to let you know from someone who has been daily driving thier GENERAL LEE for 23 years -about 3 years ago i changed to royal purple from valvoline- my car has never run better -even after the oil was in the car for a whole year- -yes the small leak might show up more - but then i knew what i need to fix or work on - now i use royal purple in my engine -oil filter - power stering -purple ice in radiator- transmission- rear end and keep a bottle ofroyal purple maxfilm in the trunk  -and  yes its a 440 magnum -posi rear end -727 trans- i am pleased with royal purple - my car is running cooler than the other side of the pillow- more power to me 

Do you use a zddp additive?  I am convinced RP is good oil.  The only thing I am unsure of is whether their oil (other than the racing oil... $$$) has enough zddp.  I think their site also says that additives are unnecessary and mess with their formula.

[NorwayCharger]

just to let you know from someone who has been daily driving thier GENERAL LEE for 23 years -about 3 years ago i changed to royal purple from valvoline- my car has never run better -even after the oil was in the car for a whole year- -yes the small leak might show up more - but then i knew what i need to fix or work on - now i use royal purple in my engine -oil filter - power stering -purple ice in radiator- transmission- rear end and keep a bottle ofroyal purple maxfilm in the trunk  -and  yes its a 440 magnum -posi rear end -727 trans- i am pleased with royal purple - my car is running cooler than the other side of the pillow- more power to me 

Do you use a zddp additive?  I am convinced RP is good oil.  The only thing I am unsure of is whether their oil (other than the racing oil... $$$) has enough zddp.  I think their site also says that additives are unnecessary and mess with their formula.

The w15/40 and w20/50 containes more zddp than the w10/40.

[GL0169]

i dont use any additives - but when i put in a new posi rearend with royal purple gear oil -it was making noise - i added some posi x because the gears were brand new - and now it runs quiet and havent had a problem since-i can feel the power 

[WHITE AND RED 69]

Has anyone tried the XPR line of royal purple oil? It says it has more zddp than its regular line.    its a bit pricey though but sounds good.