Oil

Is it ok to put 5w-30 or 10w-40 in my 98 civic dx that is just over
100k?

 

5W-30.

Don't use 10W-40. That's stupid.

 

ok thanks, because some douchebag at pepboys said it was ok

 

T'ain't.

5W-30 is your pizen.

 

I believe that the factory spec is 5W-30. In the summer you could run a
10W-30 without worrying about it, but modern 5W-30s are of such good
quality as to make it a non-issue.

John

 

TeGGeR® wrote:

I been puttin in dat 10W-40 in ma '92 Accord since new, and it still
doin fine at 230,000 mi. bob (stupid)

 

10-40 is fine Bob - the other guy is the stupid one here.

Manufacturers have been recommending lower viscosity oil for years, more due
to regulatory concerns than engine life.

Honda now recommends 5-20 oil not to extend engine life but to garner tax
credits offered under the Clean Air Act of 1991 to increase corporate fuel
economy. Thinner oils increase mileage only negligibly in each vehicle but
the authors of the CAA (mostly democrats lead by George Mitchell of Maine)
felt this would save a lot of fuel overall. It simple did not, and
credible arguments have been made since that the thinner oil actually
reduces engine life.

And BTW the wonderful Clean Air Act also brought us MTBE gasoline additives
which have contaminated between 2000 and 3000 municipal water systems in the
country.

Clean Air Act sounded so good at the time that every politician just HAD to
support that one!

 

Tom Levigne wrote:

Thinner oils increase mileage only negligibly

"There is a difference, but you can't measure it." Said my stat prof
many years ago. bob