Originally Posted By: BarkerMan
Has anyone been a user of Mobil 1 and switched to another brand because they lost confidense in EOM? If so what did you pick to replace it? I asked to people in the shop that I know were Mobil 1 users and they told me they stopped using synthetic oil at all because they felt that Mobil 1 'changed'.
I used M1 for 10 years and switched to mostly Pennzoil Platnium for 2 basic reasons.
1) Mobil 1 did change. When Extended Performance was introduced at approximately $1 more per quart I asked myself "What's going on?" Either the old M1 was an inferior product and they came out with a superior product for an additional $1, or they raised the price $1, called it EP, and reduced the quality of what became "regular" M1. Regardless, all Mobil would say was that the EP had significantly more SuperSyn (for whatever that's worth). At that point, I had little idea of the real value of Mobil 1, either in the EP or regular version.
2) An individual familiar with GC tested M1 EP 5W30 and found it to contain, to the best of his knowledge and understanding, Group III base oil, and no significant level of Group IV. So having little idea of the value of M1 products before, I had even less now. That was the final straw and led to my switch.
I think EM would be best served by coming clean about their products. There is no secret that most of their major competitors use GIII base in their "synthetic" products, and they are generally available for a little less money (significantly less when you consider the very good sale prices that occasionally occur on most OTC oils except for M1).
Mobil may have found a way to make superior oils by mixing various percentages of PAO and GIII base stocks, or perhaps they found a way to make GIII oils that offer performance superior to PAO oils in many ways. But they don’t want to talk any specifics about what they are doing. That makes me suspect that they have cheapened the product without passing any savings on to the consumer. All that leaves me with no reason to use their more costly product.