Recent content by vettenuts

Thoughts on using Mobil-1 0W-40 in the 8.1 since it is near the bottom of the 40W range?

Originally Posted By: jongies3 I'd like to try that Castrol 0W-30, but trying to find that anywhere around here's about as easy as finding Pennzoil Ultra, it just don't exist! Everyone and their sister-in-law uses Mobil 1 in these parts so other synthetics are kinda pushed aside. That is...

Thanks for the link to that article. Originally Posted By: Shannow Please don't misunderstand, I wasn't pushing the HTHS front, but up until recently, 0W40, 5W40, and 10W40 were allowed to be packed full of VII, as eveience by the fact that they were ALLLOWED to offer only the HTHS of a 30...

To say the least, the OP is confused My only concern with the T6 is the statements in the Workhorse manual that state it was found to cause an issue with the rings. Knowing someone who just had a major issue with the rings in his 8.1, that may be why I am a bit apprehensive.

Originally Posted By: CONMCK Before deciding on whether a -30 or a -40 is better your owners manual is a good place to start, and I'm assuming your workhorse has an engine oil cooler. So the question is what would the viscosity of the oil be at running temperature? I'm thinking good quality...

OK, just found this in my Workhorse manual (Workhorse is the chassis manufacturer, GM was the engine builder). Not sure Rotella is a good option now. On page 18 of the Chassis Guide published there is a chart showing the recommended oil viscosity for their gasoline engines. In the bottom right...

Originally Posted By: A_Harman I'm guessing you get about 4mpg with a gasoline engine pulling 15 tons. Once the engine goes, swap in a Duramax. In the meantime, run 10w40 M1 HM. No, actually between 7 to 8 mpg, most of the time closer to 7. Depends on the terrain we are driving. Much easier to...

Right now the way we are using the motorhome, it gets changed annually and not due to mileage. However, we plan to hit the road for months at a time in the future so then it will be changed by mileage. Not really looking for extended oil changes, rather a good oil that is readily available so...

Can Rotella be used in a gasoline motor? Seems that some of what I have read here indicates that is a no-no. I will look into the T6 and the Castrol 0W-40. Mobil-1 0W-40 might also be an other option.

Originally Posted By: CT8 Considering the oil is hard to fine would it be possible to think ahead and carry as much oil as you would project you would need? Don't really want to carry more than a couple of quarts as coach carrying capacity includes fuel, water, waste tank and such. As a...

I have a 24,000 lb motorhome towing 5,000 lbs. Currently running the Castrol 0W-30 and have had good results with this oil. This oil can be hard to find, especially on the road. Looking for a gasoline motor oil that is in the upper range of the 30W scale at 100 degrees C that is also more...

Originally Posted By: double vanos Doesn't this engine use a timing belt instead of chain(s)? That might account for the excellent iron levels. Yes, it has a timing belt that actually runs through the oil in the pan and is good for 150K miles.

Originally Posted By: pbm Is it me or do the 'comments' suggest that this report (with 4045 miles) has the similar 'wear' as UOA's with the 'universal average' of 5200 miles (which would NOT be "at or below average" but rather above average? I see it as the values are quite a bit less than...

I am posting this for another member here (15SilvyEcotec). This is his UOA on his 5.3 Vortec in a 2015 Chevy Silverado.

I am posting this for another member here (15SilvyEcotec). This is his UOA on his 1.6 GTDI EcoBoost motor in a Ford Fusion.