synth. oil,, should I????????

[joelyn]

have a 2004 fleetwood m/h 34ft with the 8.1 chevy engine that i bought new and have changed the oil every 3000 miles or less with 5-30 oil. we now have 29,000 miles and are due for our semi annual oil change and thinking of switching to a synth..
should i switch and will it be better for the engine and if so should i stay with a 5-30 synth. oil and whats a good brand to use. i have no problem at all with the engine, i switched last year to traynsend trans fluid for the allison and now thinking about doing the engine. we plan on keeping the m/h for sometime also.
thanks

[mfire1339]

I use 10w-30 mobil-1. That's in our 2004 8.1.

[DriVer]

As you are native to PA, I would stay with 5W-30 year round. Fully Synthetic motor oil is a great idea and you should look into it. I have purchased NAPA synthetic oil in the past.

[Rick Long]

Mobil 1... stick with your current viscosity or as close as you can. It will start easier and hold up much better to heat.

[joelyn]

thanks so far for the replys. should mention that we are never in cold weather, we are out of pa. from oct to apr. so should i stick with 5-30 or go up to 10-30 or doesn't really matter? thanks

[oemtech]

Personal opinion....

I would go with 10w-30 unless you are in a cold climate. Onan recommends 30 weight OR a muti-weight depending on the temp range you plan to use it in.

[DriVer]

Quote:

I would go with 10w-30 unless you are in a cold climate..

I am out of South Carolina and I run 10W-30 year round. This morning my son sent us a photo from his phone cam showing snow on the lawn in front of his house.

The conditions here in Brooksville, FL are:
and 49 degrees. Expecting temperatures in the teens this evening.

[jojolou]

I went with Mobil 1 5/30 at 5000 miles and drove to the RGV in Texas (about 1800 miles) and didn't burn a drop of oil! For the price these rigs cost, synthetic oil gives your engine a little broader protection from oil break down and is well worth the extra price.

[mountainkowboy]

I use Valvoline SYN-power 5W-30 in ours, been a valvoline user for over 30 years, lots of vehicles never a lubrication failure.

[dieselclacker]

I run Mobil-1 ,10/30 and use 5000 miles as the interval between changes, unless I'm on a long extended trip in a short amount of time. I ran California to Washington DC and return on the same oil change, but did it in a 30 day time frame. My 8.1 uses about 2 quarts of oil in 5000 miles, I usually add one quart, and it is near the add mark at oil change time. Temp range here is low 20s to about 107 degrees.

Dieselclacker

[Bagman57]

After the initial break in of about 12,000 miles, I began using Mobil 1 5 W 30 fully synthetic, but switched a few years ago to Amzoil series 3000 Heavy Duty Gas/Diesel 5 W 30. Use the same Amzoil oil in our 1 ton diesel extended cargo van with 6.5L TD. Both vehicles run great with this oil. Have about 180,000 miles on the van and 43,200 miles on the class A Allegro Bay (W-22). Bagman57.

[bdaball]

Mobile-1 in everything I own. 5-30 in the RV.

[bdaball]

DriVer, You better put another log on the fire!
When you really wanna see cold, come on up!

[DriVer]

Quote:

Originally posted by bdaball: DriVer, You better put another log on the fire! When you really wanna see cold, come on up!

bdaball, But it's not fair! this "is" Florida!

I might have to begin recommending the new Amsoil Signature Series 0W-30 if it gets any colder.