10w30 vs. 5w30

[Pro_built7]

does it really matter? i know the 3.4 calls for 5w30, but i just found 5 quarts of 10w30 and im due for an oil change. so does it really matter?

[Kronic Budz]

Re: 10w30 vs. 5w30

on my 94 3.4 it says to use 5w-30 on the oil dipstick and the oilcrankcase plug. But usually peoeple run 10w-30. It only really matters on what the season is like. When it is winter you want to run a alittle thinner oil and in the summer you want to run a little thicker. more protections against heat. hope that helps alittle.

[Pro_built7]

Re: 10w30 vs. 5w30

ya im just going to run the 10w30, but what about an oil stabilizer ? slick 50, Lucas maybe let me know guys thanks

[auto666]

Re: 10w30 vs. 5w30

most stabilizer's thicken the oil i wouldnt use the them with 10-30

[BLLDOGG]

Re: 10w30 vs. 5w30

the real difference is their ambient temp zones

[Pro_built7]

Re: 10w30 vs. 5w30

so should i think im going to use the lucas, it makes the oil stick all over internal engine parts and provides better lubrication without gumming things up
what do you guys think

[Pro_built7]

Re: 10w30 vs. 5w30

the real difference is their ambient temp zones

what do you mean man ?

[FirebirdGT]

Re: 10w30 vs. 5w30

but what about an oil stabilizer ? slick 50, Lucas maybe let me know guys thanks

NO WAY!!

.

[Black 00 Bird]

Re: 10w30 vs. 5w30

I would not recommend any oil additives. Just change your oil when you should and you should have no problems. If you are worried about build up run a top end cleaner like seafoam.

[nascar24jd]

Re: 10w30 vs. 5w30

Lucas is good for oil burning engines. It is VERY thick. Do not use it for your application, just add fresh clean oil.

[bluovlh8er]

Re: 10w30 vs. 5w30

dude do not put 5 30 in your car it will explode............

[CDNFB]

Re: 10w30 vs. 5w30

I base the use of the oil viscosity for my cars on 2 things.

1) starting as a base, I establish the recommended oil viscosity published in the owner manual, which in itself is based on ambient temperatures (as BLLDOG said). Just don't go by whats on the dipstick and the oil fill cap. Those are generalizations.

2) From that I will adjust the viscosity to be used based on the wear that the engine has.

for example: When I had my 87 olds 88 with the 3.8, the recommended oil at an ambient (outside air temp) temp of 20 Degrees C was 5W30. But the engine had high milage and was producing a bit of noise in the valvetrain and was starting to use a little oil. So I adjustrd up to using a 10W30, and then eventually to a 10W40.

Also remember that if you increase the power output of your engine, (forced induction, cam changes, nitros, etc....) you should be adjusting your viscosities to the thicker oils as well. (Thats the one of the reasons that 3500 hp Top AA Fuelers uses straight 90 weight oil, or higher!)

[FirebirdGT]

Re: 10w30 vs. 5w30

Also remember that if you increase the power output of your engine, (forced induction, cam changes, nitros, etc....) you should be adjusting your viscosities to the thicker oils as well.

But a limiting factor is the oil pumps' ability to move a thicker oil. Using a thicker oil is a mute point if the pump can not move it thoughout the engine - there is a limit.

http://www.upmpg.com/tech_articles/m...ity/index.html
.

[Firehawk N Wv]

Re: 10w30 vs. 5w30

I use Royal Purple 10w30 all year around and Ive not had any problems. Ive used that grade of oil ever since I got my car in 2001.