What are you using and why? Also do you drop your oil pan for cleaning when you do an engine flush? Anyone use Auto Rx?
thanks

 

How many miles on your engine?
I use Mobil 1 high mileage and have had great luck with it.
As for the flush, you don't need to pull the pan unless the engine has been neglected and is all sludged up

 

i also use mobil 1 high mileage oil and like it a lot.

good stuff

 

penzoil is the worst oil ive ever seen, i only use mobile 1 synth in all my vehicles, no problems

 

Another vote for Mobil1 high mileage 10W40 here

 

That is one of those urban myths that pennzoil causes sludge or it sucks, but it is not true at all. Pennzoil Yellow bottle (dino) and pennzoil platinum are highly regarded oils in the lubrication community. I use it in mine and my parents toyotas.

Pennzoil premium has a type III basestock, that is a highly processed/purified dino oil (alleged as are many of the mobil 1 base stocks). Pennzoil premium has a fair amount of ZDDP and detergents as do most mobil 1 oils. All mobil 1 oils are not created equally. The high mileage oils have conditioners and extra detergents to clean out older engines/valve trains and condition seals. The extended protection mobil 1 oils have extra zddp and moly for extended oil change intervals (these are good for our flat tappet engines). The mobile 0w-20, 0w-30, 0w-40 and 15W-50 are the mobil 1 oils that are allegedly the "true synthetics" (type IV and V basestocks) of the mobil 1 lineup (among others). The 15W-50 though thick is great for our engines as it has really high levels of zddp and moly.

The recommended mobil 1 oils according to the manual for our trucks would be the 5W-40 or 10W-40 HM or EP. Pennzoil platinum would be 5W-30. If you want a truly affordable excellent oil for year round in our engines is Shell Rotella 5W-40 synthetic. It is a heavy duty engine oil for diesel engines but is rated for gasoline engines with cats also. It is available at Walmart for $20 gallon. You can also use the dino Rotella 15W-40 and that is only $27 for 3 gallons.

On a side note there is a pennzoil premium rebate for $15 on the 5 quart jug that is $20 at Walmart. So you get it for $1 per quart. I use mobil 1 15w-50 in the summer and Rotella 5W-40 in the winter.

 

Sorry, but you have no idea what you are talking about.

 

Also here is the list of mobil 1 oils and their zinc and phosphorous levels:

http://www.mobil.com/USA-English/Mot...duct_Guide.pdf

 

Neither... I use Royal Purple

 

Whatever you choose make sure it's readily available to you in the future.