Valvoline 4-stroke Motorcycle Oil
I run Valvoline racing VR1 in my GTS. It is a good oil with a nice amount of ZDDP. I like how it performs.
I know quite a few guys who run the non-synthetic VR1 in their older engines and they tell me the same thing, Ddaddy. Its good stuff. I just went with their 4-stroke motorcycle oil because it has nearly the same additive package and both VR1 and the motorcycle oil are available in 20W50, but I wanted 10W40 and I could get that in the motorcycle oil but the VR1 was only available in 10W30 or 20W50. A bonus was...... The motorcycle oil is typically a $1.00 cheaper per qt. than the VR1.
There is also a synthetic version of VR1 for those who are into that. But even if a synthetic will do well in your particular engine, the added cost isn't worth it to me, as I will change oil in my older engines between 3,000 and 4,000 miles to get the dirt and acids/contaminants out of my crankcase. The added cost of synthetic only makes sense money wise if you are going to go a good many miles between oil changes.
FWIW...... My wife's 2013 model car uses synthetic oil and the mfg. recommends oil changes at 10,000 mile intervals. A couple friends who have their own mechanic shops both told me to change it at 5,000 miles, as it is a direct injection engine and that particular type of engine sludges and carbons up inside much worse than the older type EFI designs. A great many of these particular engines will require pulling the head(s) and spending big bucks to decoke the engine and reassemble just North of 100,000 miles. Her engine has 135,000 miles on it now and still runs great (touch wood).
Best regards,
Harry
