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03-20-2010
my GP has 175000 on it and was wondering if 15w40 would be bad to use in it. its wat we use at work for the semis. its free so if its not bad for the motor i might as well use it. its rotella t. has more cleaning detergents and such. jus thicker than the specified factory use oil.
03-20-2010
what are you using now? why do you want to change? 15-40 is too thick for the 3.8 in my opinion
03-20-2010
10-30 if anything...mobil 1...
03-21-2010
15W seems a little to think. I used 10-30 in the summer and 5-30 in the winter
03-21-2010
well its not that i want to change its that its free from work and my car has 175000 on it. i no its not what the GM ordered but i wasnt sure if itd be horrible for it as the bearing and such are worn a lil more than a low mileage 3.8. i usually put 10w30 in it. moneys tight right now and its free. we do our trucks about every 30,000. i think itll be fine with it in it.
03-21-2010
exactly...Originally Posted by bluegtp91
03-21-2010
I'm running mobile1 now, but I think I'm gonna try the valvoline maxlife synthetic blend.
03-21-2010
Should be ok in the summer, but not when its cold out. keep in mind that oil pressure will be higher, but factory oil galley holes were not designed for that thick of oil, so stay outta the high rpm range,as it may starve for oil on the top end.
03-21-2010
I would not use it.
03-21-2010
id buy autozone 10-30 oil before i used that.
Originally Posted by SuperSport
03-21-2010
This. Or even that shell oil that's always on sale for like 10 bucks a gallon with a free filter.
03-21-2010
i just stocked up
Bought a sh1t load of what ever fully synthetic was on sale when its around 3 bucks a quart vs 6-8 I stock pile but then again I do a lot of oil changes for people so that means more cash in my pocket
gtp is running 5-30 castrol edge Cause it was on sale for like 16 bucks for a 5 quarts jug
the crown vic is running 5-20 motorcaft synth blend also bought it on sale
and the truck is running rottela 15-40 cause a 2.5 gallon jug is like 24 bucks
03-21-2010
Just stocked up at Napa as they have conv oil on sale for $1.99 and Gold filters are 40% off-air, fuel, oil. A really good deal IMO.
03-21-2010
Napa's oil is a KO of ValvolineJust stocked up at Napa as they have conv oil on sale for $1.99 and Gold filters are 40% off-air, fuel, oil. A really good deal IMO.
03-22-2010
not to worry i put 10w30 in it. kept the other stuff just incase i get in a pinch for some reason
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